<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>6
<FILENAME>h78494ex77o.txt
<DESCRIPTION>EX-99.77O
<TEXT>
                                                                   Sub-Item 77O

                  TRANSACTIONS EFFECTED PURSUANT TO RULE 10F-3

                 INVESCO VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST
                          ITEM 77(O) 10F-3 TRANSACTIONS
                         MAY 1, 2010 - OCTOBER 31, 2010

<TABLE>
<CAPTION>
                                                        AMOUNT OF     % OF
                              OFFERING       TOTAL       SHARES     OFFERING
    SECURITY       PURCHASE/   PRICE OF    AMOUNT OF    PURCHASED  PURCHASED                        PURCHASED
    PURCHASED     TRADE DATE    SHARES     OFFERING      BY FUND    BY FUND         BROKERS            FROM
----------------  ----------  ---------  ------------  ----------  ---------  -------------------  -----------
<S>               <C>         <C>        <C>           <C>         <C>        <C>                  <C>
   PUERTO RICO     05/20/10    $103.968  $316,920,000  $2,100,000    0.663%   J.P. MORGAN, CITI,   J.P. MORGAN
 ELECTRIC POWER                                                               B OF A MERRILL
    AUTHORITY                                                                 LYNCH, BARCLAYS
                                                                              CAPITAL, RBC
                                                                              CAPITAL MARKETS,
                                                                              MORGAN STANLEY,
                                                                              RAMIREZ & CO.
                                                                              INC., WELLS FARGO
                                                                              SECURITIES,
                                                                              RAYMOND JAMES,
                                                                              GOLDMAN SACHS &
                                                                              CO., UBS FINANCIAL
                                                                              SERVICES
                                                                              INCORPORATED OF
                                                                              PUERTO RICO,
                                                                              BBVAPR MSD,
                                                                              FIRSTBANK PUERTO
                                                                              RICO SECURITIES,
                                                                              ORIENTAL FINANCIAL
                                                                              SERVICES, POPULAR
                                                                              SECURITIES,
                                                                              SANTANDER
                                                                              SECURITIES

     CITY OF       05/26/10    $100.000  $403,845,000  $1,900,000    0.470%   CITI, BOFA MERRILL   J.P. MORGAN
 FARMINGTON, NEW                                                              LYNCH,  J.P.
MEXICO POLLUTION                                                              MORGAN, MORGAN
 CONTROL REVENUE                                                              STANLEY,  WELLS
      BONDS                                                                   FARGO SECURITIES,
                                                                              KEYBANC CAPITAL
                                                                              MARKETS, SUNTRUST
                                                                              ROBINSON
                                                                              HUMPHREY, SOUTHWEST
                                                                              SECURITIES
</TABLE>
</TEXT>
</DOCUMENT>
