IGI Western Asset Investment Grade Defined Opportunity Trust Inc

Western Asset Investment Grade Defined Opportunity Trust Inc. (NYSE: IGI) today announced the financial position of the Fund as February 28, 2013.

          Current Q Previous Q Prior Yr Q February 28, 2013 November 30, 2012 February 29, 2012 Total Net Assets $ 240,819,964 $ 243,471,757 $ 232,848,112 NAV Per Share of Common Stock (a) $ 22.40 $ 22.67 $ 21.76 Market Price Per Share $ 22.87 $ 23.69 $ 22.90 Premium / (Discount) 2.10 % 4.50 % 5.24 % Outstanding Shares 10,753,027 10,740,411 10,700,777   Total Net Investment Income (b) $ 2,661,310 $ 2,685,489 $ 3,010,130 Total Net Realized/Unrealized Gain/(Loss) (b) $ (1,615,550 ) $ 3,819,931   $ 13,835,058   Net Increase (Decrease) in Net Assets From Operations (b) $ 1,045,760   $ 6,505,420   $ 16,845,188    

Earnings per Common Share Outstanding

Total Net Investment Income (b) $ 0.25 $ 0.25 $ 0.28 Total Net Realized/Unrealized Gain/(Loss) (b) $ (0.15 ) $ 0.36   $ 1.29   Net Increase (Decrease) in Net Assets From Operations (b) $ 0.10   $ 0.61   $ 1.57     Undistributed/(Overdistributed) Net Investment Income (c) $ 2,773,945 $ 1,353,108 $ 2,069,782 Undistributed/(Overdistributed) Net Investment Income Per Share (c) $ 0.26 $ 0.13 $ 0.19 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.