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Comerica Reports Fourth Quarter 2012 Net Income Of $130 Million

       Comerica Reports Fourth Quarter 2012 Net Income Of $130 Million

11 Percent Increase in Net Income From Third Quarter 2012 Reflects Loan and
Fee Income Growth, Expense Control

Full-Year 2012 Net Income of $521 Million Up 33 Percent From 2011

10 Million Shares Repurchased in 2012 Under the Share Repurchase Program

79 Percent of 2012 Net Income Returned to Shareholders

PR Newswire

DALLAS, Jan. 16, 2013

DALLAS, Jan. 16, 2013 /PRNewswire/ --Comerica Incorporated (NYSE: CMA) today
reported fourth quarter 2012 net income of $130 million, compared to $117
million for the third quarter 2012. Earnings per fully diluted share were 68
cents for the fourth quarter 2012, compared to 61 cents for the third quarter
2012.

(Logo: http://photos.prnewswire.com/prnh/20010807/CMALOGO)

Full-year 2012 net income was $521 million, an increase of $128 million, or 33
percent, compared to 2011. 2012 net income included restructuring expenses
associated with the acquisition of Sterling Bancshares, Inc. (Sterling) of $35
million ($22 million, after tax), compared to $75 million ($47 million, after
tax) for 2011. Earnings per fully diluted share were $2.67 for 2012, compared
to $2.09 for 2011.

(dollar amounts in millions, except   4th Qtr '12     3rd Qtr '12  4th Qtr '11
per share data)
Net interest income (a)               $   424         $   427      $   444
Provision for credit losses           16              22           18
Noninterest income                    204             197          182
Noninterest expenses (b)              427             449          479
Provision for income taxes            55              36           33
Net income                            130             117          96
Net income attributable to common     128             116          95
shares
Diluted income per common share       0.68            0.61         0.48
Average diluted shares (in millions)  188             191          197
Tier 1 common capital ratio (d)       10.11    %  (c) 10.35    %   10.37    %
Tangible common equity ratio (d)      9.71            10.25        10.27

    Included accretion of the purchase discount on the acquired Sterling loan
(a) portfolio of $13 million ($8 million, after tax), $15 million ($9 million,
    after tax) and $26 million ($16 million, after tax) in the fourth quarter
    2012, third quarter 2012 and fourth quarter 2011, respectively.
    Included restructuring expenses of $2 million ($1 million, after
    tax), $25 million ($16 million, after tax) and $37 million ($23
(b) million, after tax) in the fourth quarter 2012, third quarter
    2012 and fourth quarter 2011, respectively, associated with the
    acquisition of Sterling.
(c) December 31, 2012 ratio is estimated.
(d) See Reconciliation of Non-GAAP Financial Measures.

"Loan and fee income growth combined with expense control contributed to our
11 percent increase in net income, when compared to the third quarter," said
Ralph W. Babb Jr., chairman and chief executive officer. "In this slow growing
national economy, we continue to benefit from our position in growth markets
and industry expertise, which helped drive an increase in average total loans
of $522 million, primarily reflecting an increase of $762 million, or 3
percent, in commercial loans. We continue to capitalize on opportunities by
allocating resources to faster growing markets and segments.

"Average total deposits increased $1.4 billion in the fourth quarter to a
record $51.3 billion, primarily reflecting an increase of $1.3 billion, or 6
percent, in noninterest-bearing deposits."

"Excluding accretion, net interest income was stable in the fourth quarter,
and noninterest income increased $7 million to $204 million, primarily due to
increases in customer-driven categories. Credit quality continued to be strong
and our capital position remains a source of strength to support our growth.
We repurchased 3.1 million shares in the fourth quarter and 10.1 million
shares for the full-year 2012 under our share repurchase program. Combined
with dividends, we returned 79 percent of 2012 net income to shareholders.

"Looking ahead, we believe our focus on relationships, growth markets,
industry expertise and expense management should assist us in increasing
returns to shareholders and provide us the momentum that will not only carry
us through an extended low-rate environment, but enable us to succeed in it,
too."

Fourth Quarter and Full-Year 2012 Overview

Fourth Quarter 2012 Compared to Third Quarter 2012

  oAverage total loans increased $522 million, or 1 percent, to $44.1
    billion, primarily reflecting an increase of $762 million, or 3 percent,
    in commercial loans, partially offset by a decrease of $241 million, or 2
    percent, in commercial real estate loans (commercial mortgage and real
    estate construction loans). The increase in commercial loans was primarily
    driven by increases in National Dealer Services, Energy, general Middle
    Market and Mortgage Banker Finance, partially offset by a decrease in
    Corporate. Period-end loans increased $1.9 billion, or 4 percent, to $46.1
    billion, primarily reflecting an increase of $2.1 billion, or 7 percent,
    in commercial loans, partially offset by a decrease of $239 million, or 2
    percent, in commercial real estate loans.
  oAverage total deposits increased $1.4 billion, to $51.3 billion, primarily
    reflecting an increase of $1.3 billion, or 6 percent, in
    noninterest-bearing deposits. Period-end deposits increased $2.2 billion,
    to $52.2 billion.
  oNet interest income was $424 million in the fourth quarter 2012 compared
    to $427 million in the third quarter 2012. Excluding the $2 million
    decrease in the accretion of the purchase discount on the acquired
    Sterling loan portfolio, net interest income was stable.
  oStrong credit quality continued in the fourth quarter 2012. Nonaccrual
    loans decreased $146 million, to $519 million at December 31, 2012. Net
    credit-related charge-offs decreased $6 million to $37 million, or 0.34
    percent of average loans, in the fourth quarter 2012. The provision for
    credit losses was $16 million in the fourth quarter 2012 compared to $22
    million in the third quarter 2012.
  oNoninterest income increased $7 million to $204 million in the fourth
    quarter 2012 compared to $197 million for the third quarter 2012. The
    increase was primarily due to increases in customer driven categories.
  oNoninterest expenses decreased $22 million to $427 million in the fourth
    quarter 2012, compared to $449 million in the third quarter 2012. Fourth
    quarter 2012 included final restructuring expenses of $2 million related
    to the Sterling acquisition, a decrease of $23 million compared to the
    third quarter 2012.
  oComerica repurchased 3.1 million shares of common stock under the share
    repurchase program in the fourth quarter 2012. Combined with the dividend,
    $121 million, or 93 percent of net income, was returned to shareholders in
    the fourth quarter.

Full-Year 2012 Compared to Full-Year 2011

  oNet income of $521 million for 2012 increased $128 million, or 33 percent,
    compared to 2011.
  oAverage total loans increased $3.2 billion, or 8 percent, to $43.3 billion
    in 2012, in part due to the acquisition of Sterling and reflecting an
    increase of $4.0 billion, or 18 percent, in commercial loans, partially
    offset by a decrease of $636 million in commercial real estate loans. The
    increase in commercial loans was primarily driven by increases in Energy,
    Mortgage Banker Finance, National Dealer Services, general Middle Market,
    Technology and Life Sciences, and Corporate. Period-end total loans
    increased $3.4 billion, or 8 percent, to $46.1 billion from year-end 2011
    to year-end 2012.
  oAverage total deposits increased $5.8 billion, or 13 percent, to $49.5
    billion in 2012, in part due to the acquisition of Sterling. Period-end
    total deposits increased $4.4 billion, or 9 percent.
  oNet interest income increased $75 million, or 5 percent, primarily due to
    an increase in average earning assets of $5.4 billion and an $18 million
    increase in the accretion of the purchase discount on the acquired
    Sterling loan portfolio, partially offset by a decrease in yields.
  oCredit quality improved significantly. The provision for credit losses
    declined $65 million to $79 million in 2012, compared to 2011. Net
    credit-related charge-offs decreased $158 million to $170 million.
  oNoninterest income increased $26 million compared to 2011, primarily in
    customer-driven categories.
  oNoninterest expenses decreased $14 million. 2012 included Sterling-related
    merger and restructuring charges of $35 million, compared to $75 million
    in 2011. Salaries and employee benefits expense increased $43 million,
    primarily due to increased pension expense and the impact of Sterling.
  o10.1 million shares were repurchased in 2012, which, combined with
    dividends, returned 79 percent of 2012 net income to shareholders.

Net Interest Income

(dollar amounts in millions)             4th Qtr '12  3rd Qtr '12  4th Qtr '11
Net interest income                      $  424       $  427       $  444
Net interest margin                      2.87      %  2.96      %  3.19      %
Selected average balances:
Total earning assets                     $  59,276    $  57,801    $  55,676
Total loans                              44,119       43,597       41,454
Total investment securities              10,250       9,791        9,781
Federal Reserve Bank deposits (excess    4,638        4,160        4,216
liquidity)
Total deposits                           51,292       49,857       47,779
Total noninterest-bearing deposits       22,758       21,469       19,176

  oNet interest income of $424 million in the fourth quarter 2012 decreased
    $3 million compared to the third quarter 2012.

       oAn increase in loan volumes increased net interest income by $4
         million.
       oThe continued shift in the loan portfolio mix reduced net interest
         income $4 million. The change in loan portfolio mix primarily
         reflected a decrease in higher-yielding commercial real estate loans,
         an increase in lower-yielding commercial loans, the maturity of
         higher-yielding fixed-rate loans and positive credit quality
         migration throughout the loan portfolio.
       oA decline in LIBOR reduced net interest income $2 million.
       oAccretion of the purchase discount on the acquired Sterling loan
         portfolio decreased $2 million to $13 million in the fourth quarter
         2012, compared to $15 million in the third quarter 2012.
       oInterest earned on investment securities available-for-sale decreased
         $2 million, primarily as a result of lower reinvestment yields on
         mortgage-backed investment securities, partially offset by an
         increase in volume.
       oFunding costs decreased $1 million due to lower deposit rates. In
         addition, third quarter 2012 included a $2 million negative residual
         value adjustment to assets in the leasing portfolio.

  oAverage earning assets increased $1.5 billion in the fourth quarter 2012,
    compared to the third quarter 2012, primarily reflecting a $522 million
    increase in average loans, a $478 million increase in excess liquidity and
    a $459 million increase in average investment securities
    available-for-sale.
  oAverage deposits increased $1.4 billion in the fourth quarter 2012,
    compared to the third quarter 2012, primarily due to a $1.3 billion
    increase in average noninterest-bearing deposits. The rate paid on total
    average interest-bearing deposits decreased 2 basis points, to 22 basis
    points.
  oThe net interest margin of 2.87 percent decreased 9 basis points compared
    to the third quarter 2012. The net interest margin was negatively impacted
    by the continued shift in mix in the loan portfolio (4 basis points),
    lower yields on mortgage-backed securities (3 basis points), the decline
    in LIBOR (2 basis points), the increase in excess liquidity (2 basis
    points), and lower accretion on the acquired Sterling loan portfolio (1
    basis point). The third quarter negative residual value adjustment (2
    basis points) and lower funding costs (1 basis point) partially offset the
    decline.

Noninterest Income

Noninterest income increased $7 million to $204 million for the fourth quarter
2012 compared to $197 million for the third quarter 2012. The increase was
primarily due to increases in customer driven categories, including increases
in commercial lending fees of $3 million, customer derivative income of $3
million and fiduciary income of $3 million, partially offset by a decrease in
letter of credit fees of $2 million.

Noninterest Expenses

Noninterest expenses decreased $22 million to $427 million in the fourth
quarter 2012, compared to $449 million in the third quarter 2012. The decrease
was primarily due to decreases of $23 million in restructuring expenses, $4
million in legal fees and $2 million in employee benefits expense, partially
offset by an increase of $4 million in severance expense. In addition,
noninterest expenses were reduced by $6 million in the third quarter 2012 due
to gains on sales of assets. Restructuring charges related to the Sterling
acquisition are complete.

Provision for Income Taxes

The provision for income taxes was $55 million in the fourth quarter 2012,
compared to $36 million in the third quarter 2012. The $19 million increase in
the provision for income taxes reflected the increase in income before income
taxes, as well as adjustments for certain discrete state tax items totaling $5
million in the fourth quarter 2012. In addition, the third quarter 2012
provision for income taxes included a benefit of $4 million from interest on
tax refunds, net of tax.

Credit Quality

"Credit quality continued to be strong in the fourth quarter, with lower
nonaccrual loans, watch list loans and provision for credit losses," said
Babb. "With net charge-offs of 34 basis points, we are well within our
historically normal range. We have demonstrated throughout the cycle that we
can effectively manage credit."

(dollar amounts in millions)             4th Qtr '12  3rd Qtr '12  4th Qtr '11
Net credit-related charge-offs           $   37       $   43       $   60
Net credit-related charge-offs/Average   0.34     %   0.39     %   0.57     %
total loans
Provision for credit losses              $   16       $   22       $   18
Nonperforming loans (a)                  541          692          887
Nonperforming assets (NPAs) (a)          587          755          981
NPAs/Total loans and foreclosed property 1.27     %   1.71     %   2.29     %
Loans past due 90 days or more and still $   23       $   36       $   58
accruing
Allowance for loan losses                629          647          726
Allowance for credit losses on           32           35           26
lending-related commitments (b)
Total allowance for credit losses        661          682          752
Allowance for loan losses/Period-end     1.37     %   1.46     %   1.70     %
total loans
Allowance for loan losses/Average total  1.43         1.48         1.75
loans
Allowance for loan losses/Nonperforming  116          94           82
loans

(a) Excludes loans acquired with credit impairment.
(b) Included in "Accrued expenses and other liabilities" on the
    consolidated balance sheets.

  oInternal watch list loans continued the downward trend, declining $565
    million in the fourth quarter 2012, to $3.1 billion at December 31, 2012.
    Nonperforming assets decreased $168 million to $587 million at December
    31, 2012.
  oDuring the fourth quarter 2012, $36 million of borrower relationships over
    $2 million were transferred to nonaccrual status, an increase of $1
    million from the third quarter 2012.

Balance Sheet and Capital Management

Total assets and common shareholders' equity were $65.4 billion and $6.9
billion, respectively, at December 31, 2012, compared to $63.3 billion and
$7.1 billion, respectively, at September 30, 2012. There were approximately
188 million common shares outstanding at December 31, 2012. Comerica
repurchased $93 million of common stock (3.1 million shares) under the share
repurchase program during the fourth quarter 2012. Combined with the dividend
of $0.15 per share in the fourth quarter 2012, share repurchases and dividends
returned 93 percent of fourth quarter 2012 net income to shareholders. Common
shareholders' equity also reflected a $160 million decline in accumulated
other comprehensive income, net of tax, including temporary unrealized losses
on investment securities available-for-sale of $49 million and a net decline
of $111 million due to actuarial losses as a result of changes in defined
benefit plan assumptions, net of amortization. For full-year 2012, share
repurchases totaled $304 million (10.1 million shares), which, combined with
dividends, returned 79 percent of 2012 net income to shareholders.

Comerica's tangible common equity ratio was 9.71 percent at December 31, 2012,
a decrease of 54 basis points from September 30, 2012. The estimated Tier 1
common capital ratio decreased 24 basis points, to 10.11 percent at December
31, 2012, from September 30, 2012. The estimated Tier 1 common ratio under
fully phased-in Basel III (as proposed) was 9.1 percent at December 31, 2012.

Full-Year 2013 Outlook

For 2013, management expects the following compared to 2012, assuming a
continuation of the current slow growing economic environment:

  oContinued growth in average loans at a slower pace, with economic
    uncertainty impacting demand and a continued focus on maintaining pricing
    and structure discipline in a competitive environment.
  oLower net interest income, reflecting both a decline of $40 million to $50
    million in purchase accounting accretion and the effect of continued low
    rates. Loan growth should partially offset the impact of low rates on
    loans and securities.
  oProvision for credit losses stable, reflecting loan growth offset by a
    decline in nonperforming loans and net charge-offs.
  oIncrease in customer-driven noninterest income, reflecting continued
    cross-sell initiatives and selective pricing adjustments. (Outlook does
    not include expectations for non-customer driven income).
  oLower noninterest expense, reflecting further cost savings due to tight
    expense control and no restructuring expenses.
  oIncome tax expense to approximate 36.5 percent of pre-tax income less
    approximately $66 million in tax benefits.

Business Segments

Comerica's operations are strategically aligned into three major business
segments: the Business Bank, the Retail Bank and Wealth Management. The
Finance Division is also reported as a segment. The financial results below
are based on the internal business unit structure of the Corporation and
methodologies in effect at December 31, 2012 and are presented on a fully
taxable equivalent (FTE) basis. The accompanying narrative addresses fourth
quarter 2012 results compared to third quarter 2012.

The following table presents net income (loss) by business segment.

(dollar amounts in millions) 4th Qtr '12   3rd Qtr '12   4th Qtr '11
Business Bank                $ 212  90  %  $ 211  84  %  $ 201  94  %
Retail Bank                  8      3      10     8      10     4
Wealth Management            16     7      18     8      5      2
                             236    100 %  239    100 %  216    100 %
Finance                      (105)         (103)         (94)
Other (a)                    (1)           (19)          (26)
 Total                    $ 130         $ 117         $ 96

(a) Includes items not directly associated with the three major business
     segments or the Finance Division.

Business Bank

(dollar amounts in millions)   4th Qtr '12   3rd Qtr '12   4th Qtr '11
Net interest income (FTE)      $    393      $    386      $    381
Provision for credit losses    8             15            (6)
Noninterest income             79            76            73
Noninterest expenses           149           144           162
Net income                     212           211           201
Net credit-related charge-offs 26            27            32
Selected average balances:
Assets                         35,362        34,863        32,151
Loans                          34,325        33,856        31,260
Deposits                       26,051        25,143        23,296

  oAverage loans increased $469 million, primarily reflecting increases in
    Middle Market and Mortgage Banker Finance, partially offset by decreases
    in Corporate and Commercial Real Estate. The increase in Middle Market was
    primarily due to increases in National Dealer Services, Energy and general
    Middle Market.
  oAverage deposits increased $908 million, primarily reflecting increases in
    Corporate, Middle Market and Mortgage Banker Finance. The increase in
    Middle Market was primarily due to an increase in the Financial Services
    Division.
  oNet interest income increased $7 million, primarily due to a decrease in
    net funds transfer pricing (FTP) charges on loans and an increase in loan
    volume, partially offset by a decrease in accretion on the acquired
    Sterling loan portfolio.
  oThe provision for credit losses decreased $7 million, primarily reflecting
    decreases in Corporate and Commercial Real Estate, partially offset by an
    increase in Middle Market. The increase in Middle Market primarily
    reflected increases in the Environmental Services Group and general Middle
    Market.
  oNoninterest income increased $3 million, primarily due to increases in
    commercial lending fees and customer derivative income, partially offset
    by a decrease in letter of credit fees.
  oNoninterest expenses increased $5 million, primarily due to increases in
    salaries expenses and net allocated corporate overhead expenses, partially
    offset by a decrease in legal expenses. The increase in salaries primarily
    reflected increases in severance and business unit incentives. In
    addition, noninterest expenses were reduced in the third quarter due to
    gains on sales of assets.

Retail Bank

(dollar amounts in millions)   4th Qtr '12   3rd Qtr '12   4th Qtr '11
Net interest income (FTE)      $    156      $    161      $     176
Provision for credit losses    7             6             15
Noninterest income             43            41            35
Noninterest expenses           181           181           182
Net income (loss)              8             10            10
Net credit-related charge-offs 6             13            16
Selected average balances:
Assets                         5,952         5,964         6,250
Loans                          5,255         5,265         5,571
Deposits                       20,910        20,682        20,715

  oAverage loans decreased $10 million, primarily due to a decrease in
    Personal Banking.|
  oAverage deposits increased $228 million, primarily due to an increase in
    Small Business.
  oNet interest income decreased $5 million, primarily due to a decrease in
    net FTP funding credits on deposits and lower accretion on the acquired
    Sterling loan portfolio.
  oNoninterest income increased $2 million, primarily due to an increase in
    customer derivative income.

Wealth Management

(dollar amounts in millions)   4th Qtr '12   3rd Qtr '12   4th Qtr '11
Net interest income (FTE)      $     47      $     47      $     47
Provision for credit losses    2             3             11
Noninterest income             65            62            55
Noninterest expenses           84            78            83
Net income                     16            18            5
Net credit-related charge-offs 5             3             12
Selected average balances:
Assets                         4,686         4,566         4,672
Loans                          4,539         4,476         4,623
Deposits                       3,798         3,667         3,400

  oAverage loans increased $63 million, primarily due to an increase in
    Private Banking. |
  oAverage deposits increased $131 million, primarily due to increases in
    Private Banking.
  oNoninterest income increased $3 million, primarily the result of increases
    in fiduciary income and net securities gains.
  oNoninterest expenses increased $6 million, primarily as a result of an
    operational loss.

The decrease in the net loss of $18 million in the Other segment primarily
reflected the after-tax impact of the decrease in restructuring expenses in
the fourth quarter 2012, compared to the third quarter 2012.

Geographic Market Segments

The geographic market segments were realigned in the fourth quarter 2012 to
reflect Comerica's three largest geographic markets: Michigan, California and
Texas. Other Markets includes Florida, Arizona, the International Finance
division and businesses that have a significant presence outside of the three
primary geographic markets. The tables below present the geographic market
results based on the methodologies in effect at December 31, 2012 and are
presented on a fully taxable equivalent (FTE) basis. The accompanying
narrative addresses fourth quarter 2012 results compared to third quarter
2012.

The following table presents net income (loss) by market segment.

(dollar amounts in millions) 4th Qtr '12   3rd Qtr '12   4th Qtr '11
Michigan                     $ 74   31  %  $ 71   30  %  $  54  25  %
California                   64     27     70     29     67     31
Texas                        45     19     45     19     55     26
Other Markets                53     23     53     22     40     18
                             236    100 %  239    100 %  216    100 %
Finance & Other (a)          (106)         (122)         (120)
 Total                    $ 130         $ 117         $  96

(a) Includes items not directly associated with the geographic markets.

Michigan Market

(dollar amounts in millions)   4th Qtr '12   3rd Qtr '12   4th Qtr '11
Net interest income (FTE)      $    193      $    194      $    202
Provision for credit losses    (9)           2             20
Noninterest income             98            95            85
Noninterest expenses           183           175           185
Net income                     74            71            54
Net credit-related charge-offs 1             12            32
Selected average balances:
Assets                         13,782        13,784        13,976
Loans                          13,415        13,475        13,725
Deposits                       20,019        19,628        19,076

  oAverage loans decreased $60 million, primarily due to decreases in
    Corporate, Personal Banking and Commercial Real Estate, partially offset
    by an increase in Middle Market, primarily in National Dealer Services.
  oAverage deposits increased $391 million, primarily due to increases in
    Corporate, Middle Market and Small Business.
  oThe provision for credit losses decreased $11 million, primarily due to a
    decrease in general Middle Market.
  oNoninterest income increased $3 million, primarily reflecting increases in
    customer derivative income and commercial lending fees.
  oNoninterest expenses increased $8 million, primarily due to an operational
    loss and third quarter 2012 gains on sales of assets that reduced
    noninterest expenses.

California Market

(dollar amounts in millions)   4th Qtr '12   3rd Qtr '12   4th Qtr '11
Net interest income (FTE)      $    180      $    178      $    166
Provision for credit losses    6             5             (12)
Noninterest income             35            34            32
Noninterest expenses           100           98            101
Net income                     64            70            67
Net credit-related charge-offs 12            11            5
Selected average balances:
Assets                         13,551        13,173        11,959
Loans                          13,275        12,915        11,743
Deposits                       15,457        14,965        13,472

  oAverage loans increased $360 million, primarily due to an increase in
    Middle Market, primarily reflecting an increase in National Dealer
    Services.
  oAverage deposits increased $492 million, primarily due to increases in
    Middle Market and Private Banking. The increase in Middle Market was
    primarily due to an increase in general Middle Market.
  oNet interest income increased $2 million, primarily due to an increase in
    average loan balances and a decrease in net FTP funding charges.
  oThe provision for loan losses increased $1 million, primarily due to an
    increase in Middle Market, partially offset by decreases in Commercial
    Real Estate and Corporate.
  oNoninterest expenses increased $2 million, primarily due to nominal
    increases in several categories, partially offset by a decrease in legal
    expenses.

Texas Market

(dollar amounts in millions)   4th Qtr '12   3rd Qtr '12   4th Qtr '11
Net interest income (FTE)      $    138      $    139      $    158
Provision for credit losses    9             10            8
Noninterest income             31            30            26
Noninterest expenses           90            89            89
Net income                     45            45            55
Net credit-related charge-offs 5             7             4
Selected average balances:
Assets                         10,555        10,327        9,712
Loans                          9,818         9,585         8,952
Deposits                       9,809         9,941         10,333

  oAverage loans increased $233 million, primarily due to an increase in
    Middle Market. The increase in Middle Market was primarily due to an
    increase in Energy.
  oAverage deposits decreased $132 million, primarily reflecting decreases in
    Middle Market and Corporate, partially offset by increases in Small
    Business and Personal Banking.
  oNet interest income decreased $1 million, primarily due to a decrease in
    accretion on the acquired Sterling loan portfolio.
  oThe provision for credit losses decreased $1 million, primarily due to a
    decrease in Private Banking.

Conference Call and Webcast

Comerica will host a conference call to review fourth quarter 2012 financial
results at 7 a.m. CT Wednesday, January 16, 2013. Interested parties may
access the conference call by calling (800) 309-2262 or (706) 679-5261 (event
ID No. 80972031). The call and supplemental financial information can also be
accessed via Comerica's "Investor Relations" page at www.comerica.com. A
telephone replay will be available approximately two hours following the
conference call through January 31, 2013. The conference call replay can be
accessed by calling (855) 859-2056 or (404) 537-3406 (event ID No. 80972031).
A replay of the Webcast can also be accessed via Comerica's "Investor
Relations" page at www.comerica.com.

Comerica Incorporated is a financial services company headquartered in Dallas,
Texas, and strategically aligned by three major business segments: The
Business Bank, The Retail Bank and Wealth Management. Comerica focuses on
relationships and helping people and businesses be successful. In addition to
Texas, Comerica Bank locations can be found in Arizona, California, Florida
and Michigan, with select businesses operating in several other states, as
well as in Canada and Mexico.

This press release contains both financial measures based on accounting
principles generally accepted in the United States (GAAP) and non-GAAP based
financial measures, which are used where management believes it to be helpful
in understanding Comerica's results of operations or financial position. Where
non-GAAP financial measures are used, the comparable GAAP financial measure,
as well as a reconciliation to the comparable GAAP financial measure, can be
found in this press release. These disclosures should not be viewed as a
substitute for operating results determined in accordance with GAAP, nor are
they necessarily comparable to non-GAAP performance measures that may be
presented by other companies.

Forward-looking Statements

Any statements in this news release that are not historical facts are
forward-looking statements as defined in the Private Securities Litigation
Reform Act of 1995. Words such as "anticipates," "believes," "contemplates,"
"feels," "expects," "estimates," "seeks," "strives," "plans," "intends,"
"outlook," "forecast," "position," "target," "mission," "assume,"
"achievable," "potential," "strategy," "goal," "aspiration," "opportunity,"
"initiative," "outcome," "continue," "remain," "maintain," "on course,"
"trend," "objective," "looks forward" and variations of such words and similar
expressions, or future or conditional verbs such as "will," "would," "should,"
"could," "might," "can," "may" or similar expressions, as they relate to
Comerica or its management, are intended to identify forward-looking
statements. These forward-looking statements are predicated on the beliefs and
assumptions of Comerica's management based on information known to Comerica's
management as of the date of this news release and do not purport to speak as
of any other date. Forward-looking statements may include descriptions of
plans and objectives of Comerica's management for future or past operations,
products or services, and forecasts of Comerica's revenue, earnings or other
measures of economic performance, including statements of profitability,
business segments and subsidiaries, estimates of credit trends and global
stability. Such statements reflect the view of Comerica's management as of
this date with respect to future events and are subject to risks and
uncertainties. Should one or more of these risks materialize or should
underlying beliefs or assumptions prove incorrect, Comerica's actual results
could differ materially from those discussed. Factors that could cause or
contribute to such differences are changes in general economic, political or
industry conditions; changes in monetary and fiscal policies, including the
interest rate policies of the Federal Reserve Board; volatility and
disruptions in global capital and credit markets; changes in Comerica's credit
rating; the interdependence of financial service companies; changes in
regulation or oversight; unfavorable developments concerning credit quality;
the acquisition of Sterling Bancshares, Inc., or any future acquisitions; the
effects of more stringent capital or liquidity requirements; declines or other
changes in the businesses or industries of Comerica's customers; the
implementation of Comerica's strategies and business models, including the
implementation of revenue enhancements and efficiency improvements; Comerica's
ability to utilize technology to efficiently and effectively develop, market
and deliver new products and services; operational difficulties, failure of
technology infrastructure or information security incidents; changes in the
financial markets, including fluctuations in interest rates and their impact
on deposit pricing; competitive product and pricing pressures among financial
institutions within Comerica's markets; changes in customer behavior;
management's ability to maintain and expand customer relationships;
management's ability to retain key officers and employees; the impact of legal
and regulatory proceedings or determinations; the effectiveness of methods of
reducing risk exposures; the effects of terrorist activities and other
hostilities; the effects of catastrophic events including, but not limited to,
hurricanes, tornadoes, earthquakes, fires, droughts and floods; changes in
accounting standards and the critical nature of Comerica's accounting
policies. Comerica cautions that the foregoing list of factors is not
exclusive. For discussion of factors that may cause actual results to differ
from expectations, please refer to our filings with the Securities and
Exchange Commission. In particular, please refer to "Item 1A. Risk Factors"
beginning on page 12 of Comerica's Annual Report on Form 10-K for the year
ended December 31, 2011 and "Item 1A. Risk Factors" beginningon page 73 of
Comerica's Quarterly Report on Form 10-Q for the quarter ended September 30,
2012. Forward-looking statements speak only as of the date they are made.
Comerica does not undertake to update forward-looking statements to reflect
facts, circumstances, assumptions or events that occur after the date the
forward-looking statements are made. For any forward-looking statements made
in this news release or in any documents, Comerica claims the protection of
the safe harbor for forward-looking statements contained in the Private
Securities Litigation Reform Act of 1995.

CONSOLIDATED FINANCIAL HIGHLIGHTS (unaudited)
Comerica Incorporated and Subsidiaries
                       Three Months Ended                Years Ended
                       December   September  December    December 31,
                       31,        30,        31,
(in millions, except   2012       2012       2011        2012       2011
per share data)
PER COMMON SHARE AND
COMMON STOCK DATA
Diluted net income     $ 0.68     $ 0.61     $ 0.48      $ 2.67     $ 2.09
Cash dividends         0.15       0.15       0.10        0.55       0.40
declared
Common shareholders'   36.87      37.01      34.80
equity (at period end)
Tangible common equity 33.38      33.56      31.42
(at period end) (a)
Average diluted shares 187,954    191,492    196,729     192,473    186,168
(in thousands)
KEY RATIOS
Return on average
common shareholders'   7.36     % 6.67     % 5.51     %  7.43     % 6.18     %
equity
Return on average      0.81       0.74       0.63        0.83       0.69
assets
Tier 1 common capital  10.11      10.35      10.37
ratio (a) (b)
Tier 1 risk-based      10.11      10.35      10.41
capital ratio (b)
Total risk-based       13.11      13.67      14.25
capital ratio (b)
Leverage ratio (b)     10.52      10.73      10.92
Tangible common equity 9.71       10.25      10.27
ratio (a)
AVERAGE BALANCES
Commercial loans       $ 27,462   $ 26,700   $ 23,515    $ 26,224   $ 22,208
Real estate
construction loans:
Commercial Real Estate 1,033      999        1,189       1,031      1,429
business line (c)
Other business lines   266        390        430         359        414
(d)
Total real estate      1,299      1,389      1,619       1,390      1,843
construction loans
Commercial mortgage
loans:
Commercial Real Estate 1,939      2,140      2,552       2,259      2,217
business line (c)
Other business lines   7,580      7,530      7,836       7,583      7,808
(d)
Total commercial       9,519      9,670      10,388      9,842      10,025
mortgage loans
Lease financing        839        852        919         864        950
International loans    1,314      1,302      1,128       1,272      1,191
Residential mortgage   1,525      1,488      1,591       1,505      1,580
loans
Consumer loans         2,161      2,196      2,294       2,209      2,278
Total loans            44,119     43,597     41,454      43,306     40,075
Earning assets         59,276     57,801     55,676      57,484     52,121
Total assets           64,559     63,276     61,045      62,855     56,917
Noninterest-bearing    22,758     21,469     19,176      21,004     16,994
deposits
Interest-bearing       28,534     28,388     28,603      28,536     26,768
deposits
Total deposits         51,292     49,857     47,779      49,540     43,762
Common shareholders'   7,062      7,045      6,947       7,012      6,351
equity
NET INTEREST INCOME
Net interest income
(fully taxable         $ 425      $ 428      $ 445       $ 1,731    $ 1,657
equivalent basis)
Fully taxable          1          1          1           3          4
equivalent adjustment
Net interest margin
(fully taxable         2.87     % 2.96     % 3.19     %  3.03     % 3.19     %
equivalent basis)
CREDIT QUALITY
Nonaccrual loans       $ 519      $ 665      $ 860
Reduced-rate loans     22         27         27
Total nonperforming    541        692        887
loans (e)
Foreclosed property    46         63         94
Total nonperforming    587        755        981
assets (e)
Loans past due 90 days
or more and still      23         36         58
accruing
Gross loan charge-offs 60         59         85          $ 245      $ 423
Loan recoveries        23         16         25          75         95
Net loan charge-offs   37         43         60          170        328
Allowance for loan     629        647        726
losses
Allowance for credit
losses on              32         35         26
lending-related
commitments
Total allowance for    661        682        752
credit losses
Allowance for loan
losses as a percentage 1.37     % 1.46     % 1.70     %
of total loans
Net loan charge-offs
as a percentage of     0.34       0.39       0.57        0.39     % 0.82     %
average total loans
(f)
Nonperforming assets
as a percentage of
total loans and        1.27       1.71       2.29
foreclosed property
(e)
Allowance for loan
losses as a percentage 116        94         82
of total nonperforming
loans

(a) See Reconciliation of Non-GAAP Financial Measures.
(b) December 31, 2012 ratios are estimated.
(c) Primarily loans to real estate investors and developers.
(d) Primarily loans secured by owner-occupied real estate.
(e) Excludes loans acquired with credit-impairment.
(f) Lending-related commitment charge-offs were zero in all
    periods presented.

CONSOLIDATED BALANCE SHEETS
Comerica Incorporated and Subsidiaries
                                       December 31, September 30, December 31,
(in millions, except share data)       2012         2012          2011
                                       (unaudited)  (unaudited)
ASSETS
Cash and due from banks                $  1,395     $   933       $  982
Federal funds sold                     100          —             —
Interest-bearing deposits with banks   3,039        3,005         2,574
Other short-term investments           125          146           149
Investment securities                  10,297       10,569        10,104
available-for-sale
Commercial loans                       29,513       27,460        24,996
Real estate construction loans         1,240        1,392         1,533
Commercial mortgage loans              9,472        9,559         10,264
Lease financing                        859          837           905
International loans                    1,293        1,277         1,170
Residential mortgage loans             1,527        1,495         1,526
Consumer loans                         2,153        2,174         2,285
Total loans                            46,057       44,194        42,679
Less allowance for loan losses         (629)        (647)         (726)
Net loans                              45,428       43,547        41,953
Premises and equipment                 622          625           675
Accrued income and other assets        4,353        4,489         4,571
Total assets                           $  65,359    $   63,314    $  61,008
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest-bearing deposits           $  23,279    $   21,753    $  19,764
Money market and interest-bearing      21,284       20,407        20,311
checking deposits
Savings deposits                       1,606        1,589         1,524
Customer certificates of deposit       5,531        5,742         5,808
Foreign office time deposits           502          486           348
Total interest-bearing deposits        28,923       28,224        27,991
Total deposits                         52,202       49,977        47,755
Short-term borrowings                  110          63            70
Accrued expenses and other liabilities 1,385        1,450         1,371
Medium- and long-term debt             4,720        4,740         4,944
Total liabilities                      58,417       56,230        54,140
Common stock - $5 par value:
Authorized - 325,000,000 shares
Issued - 228,164,824 shares            1,141        1,141         1,141
Capital surplus                        2,162        2,153         2,170
Accumulated other comprehensive loss   (413)        (253)         (356)
Retained earnings                      5,931        5,831         5,546
Less cost of common stock in treasury
- 39,889,610 shares at 12/31/12,       (1,879)      (1,788)       (1,633)
36,790,174 shares at 9/30/12 and
30,831,076 shares at 12/31/11
Total shareholders' equity             6,942        7,084         6,868
Total liabilities and shareholders'    $  65,359    $   63,314    $  61,008
equity

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited)
Comerica Incorporated and Subsidiaries
                                         Three Months Ended  Years Ended
                                         December 31,        December 31,
(in millions, except per share data)     2012       2011     2012     2011
INTEREST INCOME
Interest and fees on loans               $  398     $ 415    $ 1,617  $ 1,564
Interest on investment securities        55         63       234      233
Interest on short-term investments       3          3        12       12
Total interest income                    456        481      1,863    1,809
INTEREST EXPENSE
Interest on deposits                     16         21       70       90
Interest on medium- and long-term debt   16         16       65       66
Total interest expense                   32         37       135      156
Net interest income                      424        444      1,728    1,653
Provision for credit losses              16         18       79       144
Net interest income after provision for  408        426      1,649    1,509
credit losses
NONINTEREST INCOME
Service charges on deposit accounts      52         52       214      208
Fiduciary income                         42         36       158      151
Commercial lending fees                  25         23       96       87
Letter of credit fees                    17         18       71       73
Card fees                                12         11       47       58
Foreign exchange income                  9          10       38       40
Bank-owned life insurance                9          10       39       37
Brokerage fees                           5          5        19       22
Net securities gains (losses)            1          (4)      12       14
Other noninterest income                 32         21       124      102
Total noninterest income                 204        182      818      792
NONINTEREST EXPENSES
Salaries                                 196        205      778      770
Employee benefits                        59         52       240      205
Total salaries and employee benefits     255        257      1,018    975
Net occupancy expense                    42         47       163      169
Equipment expense                        15         17       65       66
Outside processing fee expense           28         27       107      101
Software expense                         23         23       90       88
Merger and restructuring charges         2          37       35       75
FDIC insurance expense                   9          8        38       43
Advertising expense                      6          7        27       28
Other real estate expense                3          3        9        22
Other noninterest expenses               44         53       205      204
Total noninterest expenses               427        479      1,757    1,771
Income before income taxes               185        129      710      530
Provision for income taxes               55         33       189      137
NET INCOME                               130        96       521      393
Less income allocated to participating   2          1        6        4
securities
Net income attributable to common shares $  128     $ 95     $ 515    $ 389
Earnings per common share:
Basic                                    $  0.68    $ 0.48   $ 2.68   $ 2.11
Diluted                                  0.68       0.48     2.67     2.09
Comprehensive income (loss)              (30)       (30)     464      426
Cash dividends declared on common stock  28         20       106      75
Cash dividends declared per common share 0.15       0.10     0.55     0.40

CONSOLIDATED QUARTERLY STATEMENTS OF COMPREHENSIVE INCOME (unaudited)
Comerica Incorporated and Subsidiaries
              Fourth  Third   Second  First   Fourth   Fourth Quarter 2012 Compared To:
              Quarter Quarter Quarter Quarter Quarter  Third Quarter    Fourth Quarter
                                                       2012             2011
(in millions,
except per    2012    2012    2012    2012    2011     Amount  Percent  Amount  Percent
share data)
INTEREST
INCOME
Interest and  $ 398   $ 400   $ 408   $ 411   $ 415    $ (2)   —     %  $ (17)  (4)   %
fees on loans
Interest on
investment    55      57      59      63      63       (2)     (2)      (8)     (12)
securities
Interest on
short-term    3       3       3       3       3        —       —        —       —
investments
Total
interest      456     460     470     477     481      (4)     (1)      (25)    (5)
income
INTEREST
EXPENSE
Interest on   16      17      18      19      21       (1)     (6)      (5)     (23)
deposits
Interest on
medium- and   16      16      17      16      16       —       —        —       —
long-term
debt
Total
interest      32      33      35      35      37       (1)     (3)      (5)     (13)
expense
Net interest  424     427     435     442     444      (3)     —        (20)    (4)
income
Provision for 16      22      19      22      18       (6)     (25)     (2)     (7)
credit losses
Net interest
income after
provision     408     405     416     420     426      3       1        (18)    (4)

for credit
losses
NONINTEREST
INCOME
Service
charges on    52      53      53      56      52       (1)     (2)      —       —
deposit
accounts
Fiduciary     42      39      39      38      36       3       4        6       14
income
Commercial    25      22      24      25      23       3       19       2       8
lending fees
Letter of     17      19      18      17      18       (2)     (8)      (1)     (10)
credit fees
Card fees     12      12      12      11      11       —       —        1       10
Foreign
exchange      9       9       10      10      10       —       —        (1)     (13)
income
Bank-owned
life          9       10      10      10      10       (1)     (7)      (1)     (8)
insurance
Brokerage     5       5       4       5       5        —       —        —       —
fees
Net
securities    1       —       6       5       (4)      1       N/M      5       N/M
gains
(losses)
Other
noninterest   32      28      35      29      21       4       5        11      55
income
Total
noninterest   204     197     211     206     182      7       4        22      12
income
NONINTEREST
EXPENSES
Salaries      196     192     189     201     205      4       3        (9)     (5)
Employee      59      61      61      59      52       (2)     (4)      7       13
benefits
Total
salaries and  255     253     250     260     257      2       1        (2)     (1)
employee
benefits
Net occupancy 42      40      40      41      47       2       4        (5)     (10)
expense
Equipment     15      17      16      17      17       (2)     (6)      (2)     (11)
expense
Outside
processing    28      27      26      26      27       1       7        1       6
fee expense
Software      23      23      21      23      23       —       —        —       —
expense
Merger and
restructuring 2       25      8       —       37       (23)    (94)     (35)    (95)
charges
FDIC
insurance     9       9       10      10      8        —       —        1       6
expense
Advertising   6       7       7       7       7        (1)     (16)     (1)     (15)
expense
Other real
estate        3       2       —       4       3        1       36       —       —
expense
Other
noninterest   44      46      55      60      53       (2)     (2)      (9)     (16)
expenses
Total
noninterest   427     449     433     448     479      (22)    (5)      (52)    (11)
expenses
Income before 185     153     194     178     129      32      20       56      43
income taxes
Provision for 55      36      50      48      33       19      50       22      64
income taxes
NET INCOME    130     117     144     130     96       13      11       34      36
Less income
allocated to  2       1       2       1       1        1       12       1       82
participating
securities
Net income
attributable  $ 128   $ 116   $ 142   $ 129   $ 95     $ 12    11    %  $ 33    36    %
to common
shares
Earnings per
common share:
Basic         $ 0.68  $ 0.61  $ 0.73  $ 0.66  $ 0.48   $ 0.07  11    %  $ 0.20  42    %
Diluted       0.68    0.61    0.73    0.66    0.48     0.07    11       0.20    42
Comprehensive (30)    165     169     160     (30)     (195)   N/M      —       —
income (loss)
Cash
dividends     28      29      29      20      20       (1)     (1)      8       43
declared on
common stock
Cash
dividends     0.15    0.15    0.15    0.10    0.10     —       —        0.05    50
declared per
common share

N/M - Not Meaningful

ANALYSIS OF THE ALLOWANCE FOR LOAN LOSSES (unaudited)
Comerica Incorporated and Subsidiaries
                                      2012                             2011
(in millions)                         4th Qtr 3rd Qtr 2nd Qtr 1st Qtr  4th Qtr
Balance at beginning of period        $ 647   $ 667   $ 704   $ 726    $ 767
Loan charge-offs:
Commercial                            42      19      26      25       28
Real estate construction:
Commercial Real Estate business line  1       2       2       2        4
(a)
Other business lines (b)              —       —       1       —        1
Total real estate construction        1       2       3       2        5
Commercial mortgage:
Commercial Real Estate business line  5       12      16      13       17
(a)
Other business lines (b)              6       13      11      13       24
Total commercial mortgage             11      25      27      26       41
International                         —       1       —       2        2
Residential mortgage                  2       6       3       2        2
Consumer                              4       6       5       5        7
Total loan charge-offs                60      59      64      62       85
Recoveries on loans previously
charged-off:
Commercial                            13      7       10      9        11
Real estate construction              1       3       1       1        4
Commercial mortgage                   6       5       4       3        9
International                         1       —       —       1        —
Residential mortgage                  1       —       —       1        —
Consumer                              1       1       4       2        1
Total recoveries                      23      16      19      17       25
Net loan charge-offs                  37      43      45      45       60
Provision for loan losses             19      23      8       23       19
Balance at end of period              $ 629   $ 647   $ 667   $ 704    $ 726
Allowance for loan losses as a        1.37  % 1.46  % 1.52  % 1.64  %  1.70  %
percentage of total loans
Net loan charge-offs as a percentage  0.34    0.39    0.42    0.43     0.57
of average total loans

(a) Primarily charge-offs of loans to real estate investors and developers.
(b) Primarily charge-offs of loans secured by owner-occupied real
    estate.

ANALYSIS OF THE ALLOWANCE FOR CREDIT LOSSES ON LENDING-RELATED COMMITMENTS
(unaudited)
Comerica Incorporated and Subsidiaries
                                      2012                             2011
(in millions)                         4th Qtr 3rd Qtr 2nd Qtr 1st Qtr  4th Qtr
Balance at beginning of period        $  35   $  36   $  25   $  26    $  27
Add: Provision for credit losses on   (3)     (1)     11      (1)      (1)
lending-related commitments
Balance at end of period              $  32   $  35   $  36   $  25    $  26

NONPERFORMING ASSETS (unaudited)
Comerica Incorporated and Subsidiaries
                      2012                                             2011
(in millions)         4th Qtr       3rd Qtr       2nd Qtr     1st Qtr  4th Qtr
SUMMARY OF NONPERFORMING ASSETS AND PAST DUE LOANS
Nonaccrual loans:
Business loans:
Commercial            $   103       $   154       $   175     $ 205    $ 237
Real estate
construction:
Commercial Real
Estate business line  30            45            60          77       93
(a)
Other business lines  3             6             9           8        8
(b)
Total real estate     33            51            69          85       101
construction
Commercial mortgage:
Commercial Real
Estate business line  94            137           155         174      159
(a)
Other business lines  181           219           220         275      268
(b)
Total commercial      275           356           375         449      427
mortgage
Lease financing       3             3             4           4        5
International         —             —             —           4        8
Total nonaccrual      414           564           623         747      778
business loans
Retail loans:
Residential mortgage  70            69            76          69       71
Consumer:
Home equity           31            28            16          9        5
Other consumer        4             4             4           5        6
Total consumer        35            32            20          14       11
Total nonaccrual      105           101           96          83       82
retail loans
Total nonaccrual      519           665           719         830      860
loans
Reduced-rate loans    22            27            28          26       27
Total nonperforming   541           692           747         856      887
loans (c)
Foreclosed property   46            63            67          67       94
Total nonperforming   $   587       $   755       $   814     $ 923    $ 981
assets (c)
Nonperforming loans
as a percentage of    1.17      %   1.57      %   1.70      % 1.99  %  2.08  %
total loans
Nonperforming assets
as a percentage of
total loans           1.27          1.71          1.85        2.14     2.29

and foreclosed
property
Allowance for loan
losses as a
percentage of total   116           94            89          82       82

nonperforming loans
Loans past due 90
days or more and      $   23        $   36        $   43      $ 50     $ 58
still accruing
ANALYSIS OF
NONACCRUAL LOANS
Nonaccrual loans at   $   665       $   719       $   830     $ 860    $ 929
beginning of period
Loans transferred to  36            35            47          69       99
nonaccrual (d)
Nonaccrual business
loan gross            (54)          (46)          (56)        (55)     (76)
charge-offs (e)
Loans transferred to  —             —             (41)        —        —
accrual status (d)
Nonaccrual business   (48)          (20)          (16)        (7)      (19)
loans sold (f)
Payments/Other (g)    (80)          (23)          (45)        (37)     (73)
Nonaccrual loans at   $   519       $   665       $   719     $ 830    $ 860
end of period
(a) Primarily loans to real estate investors and developers.
(b) Primarily loans secured by owner-occupied real estate.
(c) Excludes loans acquired with credit impairment.
(d) Based on an analysis of nonaccrual loans with book balances greater than
$2 million.
(e) Analysis of gross loan charge-offs:
Nonaccrual business   $   54        $   46        $   56      $ 55     $ 76
loans
Performing watch list —             1             —           —        —
loans
Consumer and
residential mortgage  6             12            8           7        9
loans
Total gross loan      $   60        $   59        $   64      $ 62     $ 85
charge-offs
(f) Analysis of loans
sold:
Nonaccrual business   $   48        $   20        $   16      $ 7      $ 19
loans
Performing watch list 24            42            7           11       —
loans
Total loans sold      $   72        $   62        $   23      $ 18     $ 19
(g) Includes net changes related to nonaccrual loans with balances less than
$2 million, payments on nonaccrual loans with book balances greater than $2
million and transfers of nonaccrual loans to foreclosed property. Excludes
business loan gross charge-offs and business nonaccrual loans sold.

ANALYSIS OF NET INTEREST INCOME (FTE) (unaudited)
Comerica Incorporated and Subsidiaries
                        Years Ended
                        December 31, 2012           December 31, 2011
                        Average            Average  Average            Average
(dollar amounts in      Balance   Interest Rate     Balance   Interest Rate
millions)
Commercial loans        $ 26,224  $ 903    3.44  %  $ 22,208  $ 820    3.69  %
Real estate             1,390     62       4.44     1,843     80       4.37
construction loans
Commercial mortgage     9,842     437      4.44     10,025    424      4.23
loans
Lease financing         864       26       3.01     950       33       3.51
International loans     1,272     47       3.73     1,191     46       3.83
Residential mortgage    1,505     68       4.55     1,580     83       5.27
loans
Consumer loans          2,209     76       3.42     2,278     80       3.50
Total loans (a)         43,306    1,619    3.74     40,075    1,566    3.91
Auction-rate securities 275       2        0.79     479       4        0.72
available-for-sale
Other investment
securities              9,640     233      2.48     7,692     231      3.06
available-for-sale
Total investment
securities              9,915     235      2.43     8,171     235      2.91
available-for-sale
Interest-bearing        4,129     10       0.26     3,746     9        0.24
deposits with banks (b)
Other short-term        134       2        1.65     129       3        2.17
investments
Total earning assets    57,484    1,866    3.27     52,121    1,813    3.49
Cash and due from banks 983                         921
Allowance for loan      (693)                       (838)
losses
Accrued income and      5,081                       4,713
other assets
Total assets            $ 62,855                    $ 56,917
Money market and
interest-bearing        $ 20,629  35       0.17     $ 19,088  47       0.25
checking deposits
Savings deposits        1,593     1        0.06     1,550     2        0.11
Customer certificates   5,902     31       0.53     5,719     39       0.68
of deposit
Foreign office and      412       3        0.63     411       2        0.48
other time deposits
Total interest-bearing  28,536    70       0.25     26,768    90       0.33
deposits
Short-term borrowings   76        —        0.12     138       —        0.13
Medium- and long-term   4,818     65       1.36     5,519     66       1.20
debt
Total interest-bearing  33,430    135      0.41     32,425    156      0.48
sources
Noninterest-bearing     21,004                      16,994
deposits
Accrued expenses and    1,409                       1,147
other liabilities
Total shareholders'     7,012                       6,351
equity
Total liabilities and   $ 62,855                    $ 56,917
shareholders' equity
Net interest
income/rate spread                $ 1,731  2.86               $ 1,657  3.01
(FTE)
FTE adjustment                    $ 3                         $ 4
Impact of net
noninterest-bearing                        0.17                        0.18
sources of funds
Net interest margin (as
a percentage of average                    3.03  %                     3.19  %
earning assets) (FTE)
(a) (b)

     Accretion of the purchase discount on the acquired loan portfolio of $71
(a) million and $53 million in the 2012 and 2011, respectively, increased the
     net interest margin by 12 basis points and 10 basis points in the 2012
     and 2011, respectively.
     Excess liquidity, represented by average balances deposited with the
(b) Federal Reserve Bank, reduced the net interest margin by 21 basis points
     and 22 basis points in the 2012 and 2011, respectively.

ANALYSIS OF NET INTEREST INCOME (FTE) (unaudited)
Comerica Incorporated and Subsidiaries
                    Three Months Ended
                    December 31, 2012           September 30, 2012          December 31, 2011
                    Average            Average  Average            Average  Average            Average
(dollar amounts in  Balance   Interest Rate     Balance   Interest Rate     Balance   Interest Rate
millions)
Commercial loans    $ 27,462  $  230   3.33  %  $ 26,700  $  227   3.38  %  $ 23,515  $  216   3.64  %
Real estate         1,299     15       4.32     1,389     15       4.36     1,619     21       5.26
construction loans
Commercial mortgage 9,519     100      4.22     9,670     106      4.34     10,388    119      4.54
loans
Lease financing     839       7        3.27     852       4        2.04     919       8        3.44
International loans 1,314     12       3.73     1,302     12       3.77     1,128     10       3.63
Residential         1,525     16       4.24     1,488     17       4.67     1,591     20       5.06
mortgage loans
Consumer loans      2,161     19       3.38     2,196     19       3.44     2,294     21       3.58
Total loans (a)     44,119    399      3.60     43,597    400      3.66     41,454    415      3.98
Auction-rate
securities          216       —        0.81     234       1        0.97     426       1        0.64
available-for-sale
Other investment
securities          10,034    55       2.25     9,557     57       2.42     9,355     62       2.74
available-for-sale
Total investment
securities          10,250    55       2.22     9,791     58       2.38     9,781     63       2.64
available-for-sale
Interest-bearing
deposits with banks 4,785     2        0.25     4,276     3        0.26     4,308     3        0.24
(b)
Other short-term    122       1        1.13     137       —        1.88     133       1        2.26
investments
Total earning       59,276    457      3.08     57,801    461      3.19     55,676    482      3.45
assets
Cash and due from   1,030                       971                         959
banks
Allowance for loan  (654)                       (673)                       (773)
losses
Accrued income and  4,907                       5,177                       5,183
other assets
Total assets        $ 64,559                    $ 63,276                    $ 61,045
Money market and
interest-bearing    $ 20,770  9        0.16     $ 20,495  8        0.17     $ 20,716  12       0.21
checking deposits
Savings deposits    1,603     —        0.03     1,618     —        0.04     1,652     —        0.12
Customer
certificates of     5,634     6        0.49     5,894     8        0.52     5,872     9        0.60
deposit
Foreign office and  527       1        0.60     381       1        0.71     363       —        0.40
other time deposits
Total
interest-bearing    28,534    16       0.22     28,388    17       0.24     28,603    21       0.29
deposits
Short-term          70        —        0.12     89        —        0.12     142       —        0.07
borrowings
Medium- and         4,735     16       1.35     4,745     16       1.35     4,976     16       1.30
long-term debt
Total
interest-bearing    33,339    32       0.38     33,222    33       0.40     33,721    37       0.44
sources
Noninterest-bearing 22,758                      21,469                      19,176
deposits
Accrued expenses
and other           1,400                       1,540                       1,201
liabilities
Total shareholders' 7,062                       7,045                       6,947
equity
Total liabilities
and shareholders'   $ 64,559                    $ 63,276                    $ 61,045
equity
Net interest
income/rate spread            $  425   2.70               $  428   2.79               $  445   3.01
(FTE)
FTE adjustment                $  1                        $  1                        $  1
Impact of net
noninterest-bearing                    0.17                        0.17                        0.18
sources of funds
Net interest margin
(as a percentage of
average earning                        2.87  %                     2.96  %                     3.19  %
assets) (FTE) (a)
(b)

       Accretion of the purchase discount on the acquired loan portfolio of
       $13 million, $15 million and $26 million in the fourth and third
(a)  quarters of 2012 and the fourth quarter of 2011, respectively,
       increased the net interest margin by 9 basis points, 10 basis points
       and 19 basis points in the fourth and third quarters of 2012 and the
       fourth quarter of 2011, respectively.
       Excess liquidity, represented by average balances deposited with the
(b) Federal Reserve Bank, reduced the net interest margin by 22 basis
       points and by 21 basis points in the fourth and third quarters of 2012,
       respectively, and by 24 basis points in the fourth quarter of 2011.

CONSOLIDATED STATISTICAL DATA (unaudited)
Comerica Incorporated and Subsidiaries
                 December 31, September 30, June 30,   March 31,  December 31,
(in millions,
except per share 2012         2012          2012       2012       2011
data)
Commercial
loans:
Floor plan       $  2,939     $  2,276      $ 2,406    $ 2,152    $  1,822
Other            26,574       25,184        24,610     23,488     23,174
Total commercial 29,513       27,460        27,016     25,640     24,996
loans
Real estate
construction
loans:
Commercial Real
Estate business  1,049        1,003         991        1,055      1,103
line (a)
Other business   191          389           386        387        430
lines (b)
Total real
estate           1,240        1,392         1,377      1,442      1,533
construction
loans
Commercial
mortgage loans:
Commercial Real
Estate business  1,873        2,020         2,315      2,501      2,507
line (a)
Other business   7,599        7,539         7,515      7,578      7,757
lines (b)
Total commercial 9,472        9,559         9,830      10,079     10,264
mortgage loans
Lease financing  859          837           858        872        905
International    1,293        1,277         1,224      1,256      1,170
loans
Residential      1,527        1,495         1,469      1,485      1,526
mortgage loans
Consumer loans:
Home equity      1,537        1,570         1,584      1,612      1,655
Other consumer   616          604           634        626        630
Total consumer   2,153        2,174         2,218      2,238      2,285
loans
Total loans      $  46,057    $  44,194     $ 43,992   $ 43,012   $  42,679
Goodwill         $  635       $  635        $ 635      $ 635      $  635
Core deposit     20           23            25         27         29
intangible
Loan servicing   2            2             3          3          3
rights
Tier 1 common
capital ratio    10.11      % 10.35      %  10.38    % 10.27    % 10.37      %
(c) (d)
Tier 1
risk-based       10.11        10.35         10.38      10.27      10.41
capital ratio
(d)
Total risk-based
capital ratio    13.11        13.67         13.90      13.99      14.25
(d)
Leverage ratio   10.52        10.73         10.92      10.94      10.92
(d)
Tangible common  9.71         10.25         10.27      10.21      10.27
equity ratio (c)
Common
shareholders'    $  36.87     $  37.01      $ 36.18    $ 35.44    $  34.80
equity per share
of common stock
Tangible common
equity per share 33.38        33.56         32.76      32.06      31.42
of common stock
(c)
Market value per
share for the
quarter:
High             32.14        33.38         32.88      34.00      27.37
Low              27.72        29.32         27.88      26.25      21.53
Close            30.34        31.05         30.71      32.36      25.80
Quarterly
ratios:
Return on
average common   7.36       % 6.67       %  8.22     % 7.50     % 5.51       %
shareholders'
equity
Return on        0.81         0.74          0.93       0.84       0.63
average assets
Efficiency ratio 68.08        71.68         67.53      69.70      75.97
Number of        489          490           493        495        494
banking centers
Number of
employees - full 8,967        9,008         9,014      9,195      9,397
time equivalent

(a) Primarily loans to real estate investors and developers.
(b) Primarily loans secured by owner-occupied real estate.
(c) See Reconciliation of Non-GAAP Financial Measures.
(d) December 31, 2012 ratios are estimated.

PARENT COMPANY ONLY BALANCE SHEETS (unaudited)
Comerica Incorporated
                                       December 31, September 30, December 31,
(in millions, except share data)       2012         2012          2011
ASSETS
Cash and due from subsidiary bank      $   2        $   13        7
Short-term investments with subsidiary 431          418           411
bank
Other short-term investments           88           88            90
Investment in subsidiaries,            7,045        7,200         7,011
principally banks
Premises and equipment                 4            4             4
Other assets                           150          150           177
Total assets                           $   7,720    $   7,873     $   7,700
LIABILITIES AND SHAREHOLDERS' EQUITY
Medium- and long-term debt             $   629      $   632       $   666
Other liabilities                      149          157           166
Total liabilities                      778          789           832
Common stock - $5 par value:
Authorized - 325,000,000 shares
Issued - 228,164,824 shares            1,141        1,141         1,141
Capital surplus                        2,162        2,153         2,170
Accumulated other comprehensive loss   (413)        (253)         (356)
Retained earnings                      5,931        5,831         5,546
Less cost of common stock in treasury
- 39,889,610 shares at 12/31/12,       (1,879)      (1,788)       (1,633)
36,790,174 shares at 9/30/12 and
30,831,076 shares at 12/31/11
Total shareholders' equity             6,942        7,084         6,868
Total liabilities and shareholders'    $   7,720    $   7,873     $   7,700
equity

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (unaudited)
Comerica Incorporated and Subsidiaries
                                            Accumulated
              Common Stock                  Other                             Total
              Shares               Capital  Comprehensive Retained Treasury   Shareholders'
(in millions,
except per    Outstanding Amount   Surplus  Loss          Earnings Stock      Equity
share data)
BALANCE AT
DECEMBER 31,  176.5       $ 1,019  $ 1,481  $   (389)     $ 5,247  $ (1,565)  $   5,793
2010
Net income    —           —        —        —             393      —          393
Other
comprehensive —           —        —        33            —        —          33
income, net
of tax
Cash
dividends
declared on   —           —        —        —             (75)     —          (75)
common stock
($0.40 per
share)
Purchase of   (4.3)       —        —        —             —        (116)      (116)
common stock
Acquisition
of Sterling   24.3        122      681      —             —        —          803
Bancshares,
Inc.
Net issuance
of common
stock under   0.8         —        (29)     —             (19)     48         —
employee
stock plans
Share-based   —           —        37       —             —        —          37
compensation
BALANCE AT
DECEMBER 31,  197.3       $ 1,141  $ 2,170  $   (356)     $ 5,546  $ (1,633)  $   6,868
2011
Net income    —           —        —        —             521      —          521
Other
comprehensive —           —        —        (57)          —        —          (57)
loss, net of
tax
Cash
dividends
declared on   —           —        —        —             (106)    —          (106)
common stock
($0.55 per
share)
Purchase of   (10.2)      —        —        —             —        (308)      (308)
common stock
Net issuance
of common
stock under   1.2         —        (46)     —             (30)     63         (13)
employee
stock plans
Share-based   —           —        37       —             —        —          37
compensation
Other         —           —        1        —             —        (1)        —
BALANCE AT
DECEMBER 31,  188.3       $ 1,141  $ 2,162  $   (413)     $ 5,931  $ (1,879)  $   6,942
2012

BUSINESS SEGMENT FINANCIAL RESULTS (unaudited)
Comerica Incorporated and Subsidiaries
(dollar
amounts in     Business    Retail     Wealth
millions)
Three Months
Ended December Bank        Bank       Management  Finance    Other     Total
31, 2012
Earnings
summary:
Net interest
income         $ 393       $ 156      $  47       $ (181)    $ 10      $ 425
(expense)
(FTE)
Provision for  8           7          2           —          (1)       16
credit losses
Noninterest    79          43         65          15         2         204
income
Noninterest    149         181        84          3          10        427
expenses
Provision
(benefit) for  103         3          10          (64)       4         56
income taxes
(FTE)
Net income     $ 212       $ 8        $  16       $ (105)    $ (1)     $ 130
(loss)
Net
credit-related $ 26        $ 6        $  5        —          —         $ 37
charge-offs
Selected
average
balances:
Assets         $ 35,362    $ 5,952    $  4,686    $ 12,439   $ 6,120   $ 64,559
Loans          34,325      5,255      4,539       —          —         44,119
Deposits       26,051      20,910     3,798       320        213       51,292
Statistical
data:
Return on
average assets 2.41     %  0.14    %  1.35     %  N/M        N/M       0.81     %
(a)
Efficiency     31.49       90.68      76.96       N/M        N/M       68.08
ratio
               Business    Retail     Wealth
Three Months
Ended          Bank        Bank       Management  Finance    Other     Total
September 30,
2012
Earnings
summary:
Net interest
income         $ 386       $ 161      $  47       $ (176)    $ 10      $ 428
(expense)
(FTE)
Provision for  15          6          3           —          (2)       22
credit losses
Noninterest    76          41         62          14         4         197
income
Noninterest    144         181        78          3          43        449
expenses
Provision
(benefit) for  92          5          10          (62)       (8)       37
income taxes
(FTE)
Net income     $ 211       $ 10       $  18       $ (103)    $ (19)    $ 117
(loss)
Net
credit-related $ 27        $ 13       $  3        —          —         $ 43
charge-offs
Selected
average
balances:
Assets         $ 34,863    $ 5,964    $  4,566    $ 12,166   $ 5,717   $ 63,276
Loans          33,856      5,265      4,476       —          —         43,597
Deposits       25,143      20,682     3,667       193        172       49,857
Statistical
data:
Return on
average assets 2.42     %  0.18    %  1.61     %  N/M        N/M       0.74     %
(a)
Efficiency     31.23       89.39      71.14       N/M        N/M       71.68
ratio
               Business    Retail     Wealth
Three Months
Ended December Bank        Bank       Management  Finance    Other     Total
31, 2011
Earnings
summary:
Net interest
income         $ 381       $ 176      $  47       $ (169)    10        $ 445
(expense)
(FTE)
Provision for  (6)         15         11          —          (1)       19
credit losses
Noninterest    73          35         55          18         1         182
income
Noninterest    162         182        83          3          48        478
expenses
Provision
(benefit) for  97          4          3           (60)       (10)      34
income taxes
(FTE)
Net income     $ 201       $ 10       $  5        $ (94)     $ (26)    $ 96
(loss)
Net
credit-related $ 32        $ 16       $  12       —          —         $ 60
charge-offs
Selected
average
balances:
Assets         $ 32,151    $ 6,250    $  4,672    $ 11,959   $ 6,013   $ 61,045
Loans          31,260      5,571      4,623       —          —         41,454
Deposits       23,296      20,715     3,400       200        168       47,779
Statistical
data:
Return on
average assets 2.50     %  0.18    %  0.45     %  N/M        N/M       0.63     %
(a)
Efficiency     35.87       84.52      82.18       N/M        N/M       75.97
ratio

(a) Return on average assets is calculated based on the greater of
    average assets or average liabilities and attributed equity.

FTE - Fully Taxable Equivalent
N/M - Not Meaningful

MARKET SEGMENT FINANCIAL RESULTS (unaudited)
Comerica Incorporated and Subsidiaries
(dollar
amounts in                                         Other      Finance
millions)
Three Months
Ended December Michigan    California  Texas       Markets    & Other    Total
31, 2012
Earnings
summary:
Net interest
income         $ 193       $ 180       $ 138       $ 85       $ (171)    $ 425
(expense)
(FTE)
Provision for  (9)         6           9           11         (1)        16
credit losses
Noninterest    98          35          31          23         17         204
income
Noninterest    183         100         90          41         13         427
expenses
Provision
(benefit) for  43          45          25          3          (60)       56
income taxes
(FTE)
Net income     $ 74        $ 64        $ 45        $ 53       $ (106)    $ 130
(loss)
Net
credit-related $ 1         $ 12        $ 5         $ 19       —          $ 37
charge-offs
Selected
average
balances:
Assets         $ 13,782    $ 13,551    $ 10,555    $ 8,112    $ 18,559   $ 64,559
Loans          13,415      13,275      9,818       7,611      —          44,119
Deposits       20,019      15,457      9,809       5,474      533        51,292
Statistical
data:
Return on
average assets 1.40     %  1.56     %  1.63     %  2.65    %  N/M        0.81     %
(a)
Efficiency     62.77       46.47       53.38       38.84      N/M        68.08
ratio
                                                   Other      Finance
Three Months
Ended          Michigan    California  Texas       Markets    & Other    Total
September 30,
2012
Earnings
summary:
Net interest
income         $ 194       $ 178       $ 139       $ 83       $ (166)    $ 428
(expense)
(FTE)
Provision for  2           5           10          7          (2)        22
credit losses
Noninterest    95          34          30          20         18         197
income
Noninterest    175         98          89          41         46         449
expenses
Provision
(benefit) for  41          39          25          2          (70)       37
income taxes
(FTE)
Net income     $ 71        $ 70        $ 45        $ 53       $ (122)    $ 117
(loss)
Net
credit-related $ 12        $ 11        $ 7         $ 13       —          $ 43
charge-offs
Selected
average
balances:
Assets         $ 13,784    $ 13,173    $ 10,327    $ 8,109    $ 17,883   $ 63,276
Loans          13,475      12,915      9,585       7,622      —          43,597
Deposits       19,628      14,965      9,941       4,958      365        49,857
Statistical
data:
Return on
average assets 1.38     %  1.75     %  1.61     %  2.64    %  N/M        0.74     %
(a)
Efficiency     60.40       46.13       52.50       40.00      N/M        71.68
ratio
                                                   Other      Finance
Three Months
Ended December Michigan    California  Texas       Markets    & Other    Total
31, 2011
Earnings
summary:
Net interest
income         $ 202       $ 166       $ 158       $ 78       $ (159)    $ 445
(expense)
(FTE)
Provision for  20          (12)        8           4          (1)        19
credit losses
Noninterest    85          32          26          20         19         182
income
Noninterest    185         101         89          52         51         478
expenses
Provision
(benefit) for  28          42          32          2          (70)       34
income taxes
(FTE)
Net income     $ 54        $ 67        $ 55        $ 40       $ (120)    $ 96
(loss)
Net
credit-related $ 32        $ 5         $ 4         $ 19       —          $ 60
charge-offs
Selected
average
balances:
Assets         $ 13,976    $ 11,959    $ 9,712     $ 7,426    $ 17,972   $ 61,045
Loans          13,725      11,743      8,952       7,034      —          41,454
Deposits       19,076      13,472      10,333      4,530      368        47,779
Statistical
data:
Return on
average assets 1.07     %  1.86     %  1.92     %  2.14    %  N/M        0.63     %
(a)
Efficiency     63.84       51.18       48.23       53.73      N/M        75.97
ratio

(a) Return on average assets is calculated based on the greater of
    average assets or average liabilities and attributed equity.

FTE - Fully Taxable Equivalent
N/M - Not Meaningful

RECONCILIATION OF NON-GAAP FINANCIAL MEASURES (unaudited)
Comerica Incorporated and Subsidiaries
                 December 31, September 30, June 30,   March 31,  December 31,
(dollar amounts  2012         2012          2012       2012       2011
in millions)
Tier 1 Common
Capital Ratio:
Tier 1 capital   $  6,705     $  6,685      $ 6,676    $ 6,647    $  6,582
(a) (b)
Less:
Trust preferred  —            —             —          —          25
securities
Tier 1 common    $  6,705     $  6,685      $ 6,676    $ 6,647    $  6,557
capital (b)
Risk-weighted    $  66,312    $  64,568     $ 64,312   $ 64,742   $  63,244
assets (a) (b)
Tier 1
risk-based       10.11      % 10.35      %  10.38    % 10.27    % 10.41      %
capital ratio
(b)
Tier 1 common
capital ratio    10.11        10.35         10.38      10.27      10.37
(b)
Basel III Tier 1
Common Capital
Ratio:
Tier 1 common    $  6,705
capital (b)
Basel III
proposed         (452)
adjustments (c)
Basel III Tier 1
common capital   $  6,253
(c)
Risk-weighted    $  66,312
assets (a) (b)
Basel III
proposed         2,410
adjustments (c)
Basel III
risk-weighted    $  68,722
assets (c)
Tier 1 common
capital ratio    10.1       %
(b)
Basel III Tier 1
common capital   9.1
ratio (c)
Tangible Common
Equity Ratio:
Common
shareholders'    $  6,942     $  7,084      $ 7,028    $ 6,985    $  6,868
equity
Less:
Goodwill         635          635           635        635        635
Other intangible 22           25            28         30         32
assets
Tangible common  $  6,285     $  6,424      $ 6,365    $ 6,320    $  6,201
equity
Total assets     $  65,359    $  63,314     $ 62,650   $ 62,593   $  61,008
Less:
Goodwill         635          635           635        635        635
Other intangible 22           25            28         30         32
assets
Tangible assets  $  64,702    $  62,654     $ 61,987   $ 61,928   $  60,341
Common equity    10.62      % 11.19      %  11.22    % 11.16    % 11.26      %
ratio
Tangible common  9.71         10.25         10.27      10.21      10.27
equity ratio
Tangible Common
Equity per Share
of Common Stock:
Common
shareholders'    $  6,942     $  7,084      $ 7,028    $ 6,985    $  6,868
equity
Tangible common  6,285        6,424         6,365      6,320      6,201
equity
Shares of common
stock            188          191           194        197        197
outstanding (in
millions)
Common
shareholders'    $  36.87     $  37.01      $ 36.18    $ 35.44    $  34.80
equity per share
of common stock
Tangible common
equity per share 33.38        33.56         32.76      32.06      31.42
of common stock

(a)  Tier 1 capital and risk-weighted assets as defined by regulation.
(b) December 31, 2012 Tier 1 capital and risk-weighted assets are
       estimated.
       December 31, 2012 Basel III Tier 1 common capital and risk-weighted
(c) assets are estimated based on the proposed rules for the U.S. adoption
       of the Basel III regulatory capital framework issued in June 2012.

The Tier 1 common capital ratio removes preferred stock and qualifying trust
preferred securities from Tier 1 capital as defined by and calculated in
conformity with bank regulations. The Basel III Tier 1 common capital ratio
further adjusts Tier 1 common capital and risk-weighted assets to account for
the proposed changes issued in the U.S. banking regulators proposed rules for
the U.S. adoption of the Basel III regulatory capital framework issued in June
2012. The tangible common equity ratio removes preferred stock and the effect
of intangible assets from capital and the effect of intangible assets from
total assets. Tangible common equity per share of common stock removes the
effect of intangible assets from common shareholders equity per share of
common stock. Comerica believes these measurements are meaningful measures of
capital adequacy used by investors, regulators, management and others to
evaluate the adequacy of common equity and to compare against other companies
in the industry.

SOURCE Comerica Incorporated

Website: http://www.comerica.com
Contact: Media, Wayne J. Mielke, (214) 462-4463, or Investor Contacts, Darlene
P. Persons, (214) 462-6831, or Brittany L. Butler, (214) 462-6834