Western Asset Investment Grade Defined Opportunity Trust Inc. Announces Financial Position as of August 31, 2012

  Western Asset Investment Grade Defined Opportunity Trust Inc. Announces
  Financial Position as of August 31, 2012

Business Wire

NEW YORK -- November 08, 2012

Western Asset Investment Grade Defined Opportunity Trust Inc. (NYSE: IGI)
today announced the financial position of the Fund as of August 31, 2012.

                                Current Q        Previous Q       Prior Yr Q
                                August 31, 2012   May 31, 2012      August 31, 2011
Total Net Assets                $ 240,066,906     $ 230,284,797     $ 225,366,575
NAV Per Share of Common Stock   $ 22.38           $ 21.49           $ 21.13
(a)
Market Price Per Share          $ 22.82           $ 22.87           $ 21.43
Premium / (Discount)              1.97        %     6.42        %     1.42        %
Outstanding Shares                10,728,678        10,716,079        10,665,067
                                                                    
Total Net Investment Income (b) $ 3,005,389       $ 3,006,803       $ 2,838,876
Total Net Realized/Unrealized   $ 9,864,147      $ (2,537,612  )   $ (4,433,681  )
Gain/(Loss) (b)
Net Increase (Decrease) in Net  $ 12,869,536     $ 469,191        $ (1,594,805  )
Assets From Operations (b)
                                                                    
Earnings per Common Share
Outstanding
Total Net Investment Income (b) $ 0.28            $ 0.28            $ 0.27
Total Net Realized/Unrealized   $ 0.92           $ (0.24       )   $ (0.42       )
Gain/(Loss) (b)
Net Increase (Decrease) in Net  $ 1.20           $ 0.04           $ (0.15       )
Assets From Operations (b)
                                                                    
Undistributed/(Overdistributed) $ 1,364,749       $ 1,720,189       $ 1,902,865
Net Investment Income (c)
Undistributed/(Overdistributed)
Net Investment Income
Per Share (c)                   $ 0.13            $ 0.16            $ 0.18

Footnotes:

(a) NAVs are calculated as of the close of business on the last business day
in the periods indicated above.

(b) For the quarter indicated.

(c) As of the date indicated above.

This financial data is unaudited.

The Fund files its semi-annual and annual reports with the Securities and
Exchange Commission, as well as its complete schedule of portfolio holdings
for the first and third quarters of each fiscal year on Form N-Q. These
reports are available on the Commission’s website at www.sec.gov. To obtain
information on Form N-Q or a semi-annual or annual report from the Fund,
shareholders can call 1-888-777-0102.

Western Asset Investment Grade Defined Opportunity Trust Inc., a
non-diversified, limited-term, closed-end management investment company, is
managed by Legg Mason Partners Fund Advisor, LLC, a wholly-owned subsidiary of
Legg Mason, Inc., and is sub-advised by Western Asset Management Company, an
affiliate of the manager.

For more information, please call 1-888-777-0102 or consult the Fund’s web
site at www.lmcef.com.

Data and commentary provided in this press release are for informational
purposes only. Legg Mason and its affiliates do not engage in selling shares
of the Fund.

Contact:

Western Asset Investment Grade Defined Opportunity Trust Inc.
Maria Rosati, 212-805-6036
mrosati@leggmason.com