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Filed Pursuant to Rule 497(e)
Registration File No.: 2-81151
SUPPLEMENT TO THE PROSPECTUS OF
DEAN WITTER DEVELOPING GROWTH SECURITIES TRUST
DATED NOVEMBER 15, 1993
The fifth paragraph under the section of the Prospectus entitled "The Fund
and its Management" is revised to reflect that, effective May 1, 1994, the
Trustees of the Fund have amended the Fund's Investment Management Agreement
to reduce the compensation received by the Investment Manager under the
Agreement for assets exceeding $500 million, so that the compensation under
the Agreement is calculated daily by applying the following annual rates to
the Fund's net assets determined as of the close of each business day: 0.50%
of the portion of daily net assets not exceeding $500 million; and 0.475% of
the portion of daily net assets exceeding $500 million.
April 29, 1994
