Oppenheimer Convertible Securities Fund

                            Supplement dated May 12, 2008 to the
                  Statement of Additional Information dated April 29, 2008

     This  supplement   amends  the  Statement  of  Additional   Information  of
Oppenheimer  Convertible  Securities Fund (the "Fund") and is in addition to the
supplement  dated April 29, 2008.  The  Statement of Additional  Information  is
amended as follows:


     The first two paragraphs,  including all of the bullet points  therein,  in
the section  titled "How to Exchange  Shares," are deleted in their entirety and
replaced by the following:

     As stated in the  Prospectus,  shares of a particular  class of Oppenheimer
funds having more than one class of shares may be  exchanged  only for shares of
the same class of other Oppenheimer funds. Shares of Oppenheimer funds that have
a single class without a class  designation are deemed "Class A" shares for this
purpose.  The prospectus of each of the Oppenheimer  funds indicates which share
class or classes that fund offers and provides  information about limitations on
the purchase of particular share classes, as applicable for the particular fund.
You can also obtain a current  list showing  which funds offer which  classes of
shares by calling the Distributor at the telephone number indicated on the front
cover of this SAI.

     The Fund may amend,  suspend or  terminate  the  exchange  privilege at any
time.  Although the Fund may impose those  changes at any time,  it will provide
you with  notice of the changes  whenever it is required to do so by  applicable
law. It may be required to provide 60 days' notice prior to materially  amending
or terminating the exchange privilege, except in extraordinary circumstances.









May 12, 2008                                                       PX0345.012