/C O R R E C T I O N -- CBOE Holdings, Inc./

                 /C O R R E C T I O N -- CBOE Holdings, Inc./

PR Newswire

CHICAGO, April 1, 2013

In the news release, "CBOE Holdings Reports March 2013 Trading Volume," issued
01-Apr-2013 by CBOE Holdings, Inc. over PR Newswire, we are advised by the
company that the first table, "CBOE Holdings Consolidated Trading Volume,"
which was originally included, has been replaced by a corrected table. The
original table should be disregarded. The complete, corrected release follows:

  CBOE Holdings Reports March 2013 Trading Volume

    - VIX Futures Set Record Total Monthly Volume for Third Straight Month

CHICAGO, April 1, 2013 /PRNewswire/ --CBOE Holdings, Inc. (NASDAQ: CBOE)
reported today that March trading volume for options contracts on Chicago
Board Options Exchange^®, Incorporated (CBOE^®) and C2 Options Exchange
(C2^SM) and futures contracts on CBOE Futures Exchange, LLC (CFE^®) totaled
89.81 million contracts. Average daily volume (ADV) in March was 4.49 million
contracts, up three percent from 4.38 million contracts in February 2013 and
down nine percent from 4.93 million contracts in March 2012.

(Logo: http://photos.prnewswire.com/prnh/20121022/MM97794LOGO-a)

In March, CBOE Volatility Index® (VIX® Index) futures established their best
month ever in total monthly volume and second best in average daily volume. 

CBOE Holdings Consolidated Trading Volume              Year-To-Date
(trades in        Mar-13   Mar-12    %    Feb-13   %   Mar-13    Mar-12    %
thousands)                           Chg           Chg                     Chg
Trading Days      20       22             19           60        62
Total
Contracts(options 89,811.7 108,625.8 -17% 83,140.4 8%  261,972.0 302,667.5 -13%
& futures)
Total Options
Contracts (CBOE & 86,582.8 106,654.2 -19% 80,052.6 8%  252,727.7 298,543.9 -15%
C2)
Total Futures     3,228.9  1,971.6   64%  3,087.8  5%  9,244.3   4,123.6   124%
Contracts (CFE)
Total ADV
(options &        4,490.5  4,937.5   -9%  4,375.8  3%  4,366.2   4,881.7   -11%
futures)
Total Options ADV 4,329.1  4,847.9   -11% 4,213.3  3%  4,212.1   4,815.2   -13%
(CBOE & C2)
Total Futures ADV 161.4    89.6      80%  162.5    -1% 154.1     66.5      132%
(CFE)



CBOE Trading Volume and Market Share

CBOE  Trading Volume:

  oMarch 2013 ADV at CBOE was 4.04 million contracts, up two percent from
    February 2013 ADV of 3.95 million contracts and down 13 percent from March
    2012 ADV of 4.62 million contracts.
  oThe five most actively traded index and ETP options at CBOE in March were
    S&P 500^® Index (SPX^SM) options, CBOE Volatility Index^® (VIX^® Index)
    options, Standard & Poor's Depositary Receipt (SPY) options, iShares Trust
    - Russell 2000 Index Fund (IWM) options and iPath S&P 500 VIX Short-Term
    Futures ETN (VXX) options.
  oThe five most actively traded equity options in March were Bank of America
    (BAC), Apple (AAPL), Blackberry (BBRY), Facebook (FB), and Citigroup (C).

CBOE Trading Volume Current Month                    Year-To-Date
(trades in     Mar-13   Mar-12    % Chg Feb-13   %   Mar-13    Mar-12    % Chg
thousands)                                       Chg
Trading Days   20       22              19           60        62
Total Exchange 80,802.2 101,742.4 -21%  75,053.9 8%  236,695.7 284,768.1 -17%
Total Exchange 4,040.1  4,624.7   -13%  3,950.2  2%  3,944.9   4,593.0   -14%
ADV
Equity Options 29,346.3 46,413.7  -37%  29,405.9 0%  91,365.2  138,184.2 -34%
Equity Options 1,467.3  2,109.7   -30%  1,547.7  -5% 1,522.8   2,228.8   -32%
ADV
Index Options  31,055.0 26,795.6  16%   26,827.1 16% 89,909.9  72,417.8  24%
Index Options  1,552.8  1,218.0   27%   1,412.0  10% 1,498.5   1,168.0   28%
ADV
ETF Options    20,400.9 28,533.0  -29%  18,820.9 8%  55,420.6  74,166.1  -25%
ETF Options    1,020.0  1,297.0   -21%  990.6    3%  923.7     1,196.2   -23%
ADV

Expanded full-year and March 2013 volume information for CBOE index and ETP
options is available at: www.cboe.com/data/monthlyvolume.aspx.

CBOE Market Share:

CBOE market share of total U.S. options industry volume was 25.9 percent in
March 2013, up 2.5 percentage points from February 2013 and down 1.1
percentage points from March 2012. If the volume from dividend trades was
excluded from industry data for March, the Exchange's total market share would
be 26.7 percent. Exclusion of dividend trades from total industry volume data
presents a more relevant measure of the relative trends in the options
business.

CBOE Market Share Current Month                            Year-To-Date
                          Mar-13 Mar-12 % Pt. Feb-13 % Pt. Mar-13 Mar-12 % Pt.
                                        Chg.         Chg                 Chg.
Total Exchange            25.9%  27.0%  -1.1% 23.4%  2.5%  23.8%  26.8%  -3.0%
Total Exchange (excl.     26.7%  28.6%  -1.9% 24.1%  2.6%  24.4%  28.5%  -4.1%
dividend trades)
Equity Options            17.6%  22.6%  -5.0% 15.9%  1.7%  16.0%  21.8%  -5.8%
Equity Options (excl.     19.8%  24.3%  -4.5% 18.7%  1.1%  18.1%  24.2%  -6.1%
dividend trades)
Index Options             95.5%  94.4%  1.1%  94.6%  0.9%  95.0%  94.6%  0.4%
Index Options (excl.      95.2%  94.4%  0.8%  93.8%  1.4%  94.5%  94.6%  -0.1%
dividend trades)
ETF Options               18.1%  20.0%  -1.9% 17.4%  0.7%  16.9%  21.1%  -4.2%
ETF Options (excl.        18.7%  21.3%  -2.6% 17.4%  1.3%  17.1%  21.7%  -4.6%
dividend trades)

C2 Trading Volume and Market Share

C2 Trading Volume:

C2 volume in March 2013 totaled 5.78 million contracts. ADV was 289,000
contracts – up 29 percent from March 2012 ADV of 223,300 contracts and up 10
percent from February 2013 ADV of 263,100 contracts.

C2 Trading Volume Current Month                        Year-To-Date
(trades in         Mar-13  Mar-12  % Chg Feb-13  % Chg Mar-13   Mar-12   % Chg
thousands)
Trading Days       20      22            19            60       62
Total Exchange     5,780.7 4,911.8 18%   4,998.6 16%   16,032.0 13,775.8 16%
Total Exchange ADV 289.0   223.3   29%   263.1   10%   267.2    222.2    20%
Equity Options     1,106.0 1,875.6 -41%  1,362.7 -19%  4,919.9  5,675.2  -13%
Equity Options ADV 55.3    85.3    -35%  71.7    -23%  82.0     91.5     -10%
Index Options*     --      165.4   --    52.0    --    136.3    360.2    --
Index Options ADV* --      7.5     --    2.7     --    2.3      5.8      --
ETF Options        4,674.7 2,870.9 63%   3,583.9 30%   10,975.9 7,740.4  42%
ETF Options ADV    233.7   130.5   79%   188.6   24%   182.9    124.8    47%

*SPXpm moved from C2 to CBOE on February 19, 2013.

C2 Market Share:

C2 market share of total industry volume in March 2013 was 1.9 percent, up 0.6
of a percentage point from March 2012 and up 0.3 of a percentage point from
February 2013.

C2 Market Share Current Month                             Year-To-Date
                                        % Pt.        % Pt.               % Pt.
                          Mar-13 Mar-12 Chg.  Feb-13       Mar-13 Mar-12
                                                     Chg.                Chg.
Total Exchange            1.9%   1.3%   0.6%  1.6%   0.3%  1.6%   1.3%   0.3%
Total Exchange(excl.      1.9%   0.9%   1.0%  1.6%   0.3%  1.7%   1.4%   0.3%
dividend trades)
Equity Options            0.7%   0.9%   -0.2% 0.7%   --    0.9%   0.9%   --
Equity Options (excl.     0.7%   1.0%   -0.3% 0.8%   -0.1% 0.9%   1.0%   -0.1%
dividend trades)
Index Options*            --     0.6%   --    0.2%   --    0.1%   0.5%   --
Index Options*(excl.      --     0.6%   --    0.2%   --    0.2%   0.5%   --
dividend trades)
ETF Options               4.2%   2.0%   2.2%  3.3%   0.9%  3.4%   2.2%   1.2%
ETF Options (excl.        4.3%   2.1%   2.2%  3.3%   1.0%  3.4%   2.3%   1.1%
dividend trades)

*SPXpm moved from C2 to CBOE on February 19, 2013.

CBOE Futures Exchange Trading Volume

  oVIX futures established a new all-time monthly total volume record in
    March – 3,220,977 contracts – surpassing the previous monthly record of
    3,062,344 contracts traded in February 2013 by five percent. 
  oAverage daily volume of 161,049 in VIX futures during March fell just
    short of the record ADV of 161,176 contracts in February. 

CBOE Holdings Average Revenue Per Contract 

The following represents the average revenue per contract based on a
three-month rolling average, reported on a one-month lag. The average revenue
per contract represents total transaction fees for CBOE, C2 and CFE recognized
for the period divided by total contracts traded on all three exchanges during
the period. Average revenue per contract can be affected by various factors,
including exchange fee rates, volume-based discounts and transaction mix by
contract type and product type.

(In Dollars)                                    Three-Month Period Ended
Product:                                        Feb-13 Jan-13 Dec-12 Nov-12
Equities                                        $0.153 $0.149 $0.134 $0.124
Indexes                                         $0.670 $0.665 $0.670 $0.670
Exchange Traded Products                        $0.181 $0.194 $0.186 $0.183
 Total Options Average Revenue Per Contract $0.341 $0.340 $0.322 $0.309
Futures                                         $1.560 $1.484 $1.442 $1.473
 Total Average Revenue Per Contract         $0.382 $0.376 $0.355 $0.342

About CBOE Holdings

CBOE Holdings, Inc. (NASDAQ: CBOE) is the holding company for Chicago Board
Options Exchange, Incorporated (CBOE), CBOE Futures Exchange, LLC (CFE) and
other subsidiaries. CBOE, the largest U.S. options exchange and creator of
listed options, continues to set the bar for options and volatility trading
through product innovation, trading technology and investor education. CBOE
Holdings offers equity, index and ETP options, including proprietary products,
such as S&P 500 options (SPX), the most active U.S. index option, and options
and futures on the CBOE Volatility Index (the VIX Index). Other products
engineered by CBOE include equity options, security index options, LEAPS
options, FLEX options, and benchmark products such as the CBOE S&P 500
BuyWrite Index (BXM). CBOE Holdings is home to the world-renowned Options
Institute and www.cboe.com, the go-to place for options and volatility trading
resources. CBOE is regulated by the Securities and Exchange Commission (SEC),
with all trades cleared by the OCC.

CBOE^®, Chicago Board Options Exchange^®, CFE^®, FLEX^®, LEAPS^®, CBOE
Volatility Index^® and VIX^® are registered trademarks, and BuyWrite^SM,
BXM^SM, CBOE Futures Exchange^SM, Execute Success^SM, SPX^SM, SPXpm^SM, and
The Options Institute are service marks of Chicago Board Options Exchange,
Incorporated (CBOE). C2^SM and C2 Options Exchange^SM are service marks of C2
Options Exchange, Incorporated (C2). Standard & Poor's^®, S&P^® and S&P 500^®
are registered trademarks of Standard & Poor's Financial Services, LLC and
have been licensed for use by CBOE, C2 and CFE. All other trademarks and
service marks are the property of their respective owners.

CBOE-V
CBOE-2
CBOE-EF

SOURCE CBOE Holdings, Inc.

Website: http://www.cboe.com
Contact: Media, Gail Osten, +1-312-786-7123, osten@cboe.com, or Gary Compton,
+1-312-786-7612, comptong@cboe.com, or Analysts, Debbie Koopman,
+1-312-786-7136, koopman@cboe.com
 
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