OPPENHEIMER TRINITY CORE FUND, 497, 1999-10-13

OPPENHEIMER TRINITY CORE FUND
497, 1999-10-13

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                          OPPENHEIMER TRINITY CORE FUND
                Supplement dated October 13, 1999 to the
                    Prospectus dated August 30, 1999

The Prospectus is changed as follows:

      1. The second  sentence of the first  paragraph  in the  section  entitled
"What Does the Fund Invest In?" on page 3 is replaced by the following sentence:

      The Fund does not  expect to invest in all of the stocks  included  in the
      S&P 500 Index at the same time,  and the Fund's  investments in particular
      stocks  may be  allocated  in  amounts  that  vary  from the  proportional
      weightings of those stocks in the S&P 500 Index.
      Therefore, the Fund is not an "index" fund.

      2. The  second  sentence  of the  fifth  complete  paragraph  on page 8 is
      deleted.




















October 13, 1999                                              PS0211.003