PIMCO Corporate Opportunity Fund Reports Results For the Fiscal Quarter and Year Ended November 30, 2006


NEW YORK, Feb. 13, 2007 (PRIME NEWSWIRE) -- PIMCO Corporate Opportunity Fund (the "Fund") (NYSE:PTY), a closed-end management investment company which seeks maximum total return through a combination of current income and capital appreciation, today announced its results for the fiscal quarter and year ended November 30, 2006.


                                                                      
                                            At November 30,           
                                      2006                   2005     
                                      ----                   ----     
 Net Assets (a)                 $1,587,822,848         $1,578,189,113 
 Common Shares Outstanding          65,501,953             64,994,148 
 Net Asset Value ("NAV")                $15.62                 $15.59 
 Market Price                           $16.94                 $17.20 
 Premium to NAV                          8.45%                 10.33% 
                                                                      
                                                                      
                                                                      
                                         Quarter Ended November 30,   
                                        2006                   2005   
                                        ----                   ----   
 Net Investment Income (b)         $24,844,493            $24,738,465 
 Per Share (b)                           $0.39                  $0.38 
 Net Realized and Change                                              
  in Unrealized Gain (Loss) (b)    $29,300,845           $(42,163,974)
 Per Common Share (b)                    $0.46                 $(0.64)
 3 Month Average Undistributed                                        
  (Overdistributed) Net                                               
  Investment Income Per Common                                        
  Share (c)                           $(0.1205)               $0.0740 
                                                                      
                                                                      
                                                                      
                                         Year Ended November 30,      
                                        2006                   2005   
                                        ----                   ----   
 Net Investment Income (b)        $102,210,289            $97,509,482 
 Per Share (b)                           $1.57                  $1.50 
 Net Realized and Change in                                           
  Unrealized Gain (Loss) (b)       $34,557,405           $(26,297,730)
 Per Share (b)                           $0.54                 $(0.40)

 (a) Net assets are inclusive of market value of Preferred Shares
     of $565 million.

 (b) The information  provided is in accordance with generally
     accepted accounting  principles  ("GAAP"), which requires
     the Fund to treat amounts  received by the Fund under swap
     agreements as net realized gain  (loss). However, these
     amounts  are  treated as net income (loss) for federal income
     tax  purposes.  By using GAAP, Net Investment  Income for the
     fiscal  quarter and year ended  November 30, 2006 was
     $1,015,951  ($0.01 per common share) and  $24,439,670 ($0.37
     per common share) lower,  respectively (and Net Realized and
     Change in Unrealized  Gain (Loss)  correspondingly  higher
     (lower)) than those figures would have been if swap amounts
     were treated as net income (loss) in accordance  with federal
     income tax treatment. By using GAAP,  Net  Investment  Income
     for the fiscal  quarter and year ended  November 30, 2005 was
     $2,729,256  ($0.04 per common share) and $25,337,450 ($0.39
     per common share) lower, respectively (and Net Realized and
     Change in Unrealized Gain (Loss) correspondingly  higher
     (lower)) than those figures would have been if swap amounts
     were treated as net income (loss) in accordance with federal
     income tax treatment.

 (c) Calculated using the accumulated month-end balances for the
     three months ended November 30, 2006, and November 30, 2005,
     respectively. Please  note that generally there is a close
     correlation  between what the Fund earns (net of expenses)
     and what it pays in monthly dividends. However, since net
     earning  rates fluctuate from month to month while monthly
     dividends have remained relatively stable, there will be
     periods when the Fund may modestly over-earn or under-earn
     its monthly  dividend which would have the effect of adding to
     or  subtracting from the Fund's undistributed (overdistributed)
     net investment  income balance.  Fund management analyzes the
     Fund's  current and  projected net earning rates prior to
     recommending  dividend  amounts to the Fund's Board of Trustees
     for  declaration.  There can  be no assurance that the current
     dividend rate or the undistributed (overdistributed) net
     investment income balance will remain constant. Inclusive
     of amounts received under swap agreements, in accordance with
     federal  income tax treatment.

Allianz Global Investors Fund Management LLC, an indirect, wholly-owned subsidiary of Allianz Global Investors of America L.P., serves as the Fund's investment manager and is a member of Munich-based Allianz Group (NYSE:AZ). Pacific Investment Management Company LLC, an Allianz Global Investors Fund Management affiliate, serves as the Fund's sub-adviser.

The Fund's daily New York Stock Exchange closing price, net asset value per share, as well as other information, is available at http://www.allianzinvestors.com/closedendfunds or by calling the Fund's shareholder servicing agent at (800) 331-1710.

The financial information contained herein is solely based upon the data available at the time of publication of this press release, and there is no assurance that future results will be the same or similar to what is reported herein. Information that was obtained from third party sources we believe to be reliable is not guaranteed as to its accuracy or completeness. This press release contains no recommendations to buy or sell any specific securities and should not be considered investment advice of any kind. Past performance is no guarantee of future results and the investment returns generated by the Fund will fluctuate. In making any investment decision, individuals should utilize other information sources and the advice of their own professional adviser.



            

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