SCHEDULE 14A INFORMATION
           PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES
                              EXCHANGE ACT OF 1934
                                (AMENDMENT NO. )

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     Rule 14a-6(e)(2))

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                               BT INVESTMENT FUNDS
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                (Name of Registrant as Specified In Its Charter)


- --------------------------------------------------------------------------------
      (Name of Person(s) filing Proxy Statement, if other than Registrant)

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                                                               September 3, 1999

Dear Shareholder:

Enclosed you will find an amendment and supplement to the proxy statement, dated
August 23, 1999, for the special meeting of shareholders to be held September
21, 1999, along with a proxy card.

Your vote is important, regardless of how many shares you own. Please take the
time to vote your shares. Choose one of the following options to vote:

          1.  By Mail: Complete the enclosed proxy card and return in the
              postage-paid envelope provided.

          2.  By Telephone: Call the Toll-Free # on your proxy card.

          3.  By Internet: Logon to www.proxyvote.com.

          4.  Attend Shareholder Meeting (details in the August 23, 1999 proxy
              statement).

                                        Sincerely,

                                        /s/ Daniel O. Hirsch

                                        Daniel O. Hirsch
                                        Secretary
                                        BT Mutual Funds


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                               BT INVESTMENT FUNDS

                            Quantitative Equity Fund

                                One South Street
                            Baltimore, Maryland 21202

                 AMENDMENT AND SUPPLEMENT TO THE PROXY STATEMENT
          DATED AUGUST 23, 1999 FOR THE SPECIAL MEETING OF SHAREHOLDERS
                          TO BE HELD SEPTEMBER 21, 1999



This statement amends and supplements the information provided in the Proxy
Statement dated August 23, 1999, which was first mailed to shareholders on
August 25, 1999 (the "Proxy Statement") relating to the Special Meeting of
shareholders of BT Investment Funds (the "Trust") and soliciting the
shareholders of Quantitative Equity Fund (the "Fund"), a series of the Trust,
scheduled for September 21, 1999 (the "Special Meeting").

The purpose of this Amendment and Supplement is to provide shareholders with
corrected information on Proposal IV, to be voted on at the Special Meeting. You
should read the information contained in this Amendment and Supplement together
with the Proxy Statement.

Proposal IV

To ratify or reject the election of Ernst & Young LLP as the independent
accountants for the Fund's current fiscal year.

Ernst & Young LLP, not PricewaterhouseCoopers LLP, are currently the independent
accountants of the Fund and are proposed to be ratified by the shareholders of
the Fund as such. Proposal IV proposed PricewaterhouseCoopers LLP to be ratified
as the independent accountants of the Fund in error. Throughout the Proxy
Statement, references to PricewaterhouseCoopers LLP should be read as references
to Ernst & Young LLP and Proposal IV should be read as a proposal to ratify
Ernst & Young LLP as independent accountants for the Fund's current fiscal year.

Voting Information

If your ballot has already been cast, a vote to ratify PricewaterhouseCoopers
LLP as the independent accountants of the Fund will be deemed to be a vote to
ratify Ernst & Young LLP as the independent accountants of the Fund.

You will find a proxy card enclosed with this Amendment and Supplement identical
to the one you received with the Proxy
Statement, with the exception that Proposal IV proposes Ernst &


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Young LLP for ratification as the accountants for the Fund. If you have not
previously returned your proxy card, or if you wish to revoke a previously
submitted proxy, please sign, date and mail the enclosed proxy card in the
envelope provided. Shareholders who attend the Special Meeting may revoke their
proxies and vote in person.





September 3, 1999


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