FEDERATED MDT SERIES
Federated Investors Funds
4000 Ericsson Drive
Warrendale, Pennsylvania 15086-7561
November 24, 2009
EDGAR Operations Branch
U.S. Securities and Exchange Commission
Division of Investment Management
100 F Street, N.E.
Washington, DC 20549-4720
RE: FEDERATED MDT SERIES (“Trust”)
Federated MDT All Cap Core Fund
Class A Shares
Class C Shares
Institutional Shares (the “Portfolio”)
1940 Act File No. 811-21904
Dear Sir or Madam:
Transmitted herewith for filing pursuant to the Securities Act of 1933, as amended, (“1933 Act”), is the Registration Statement on Form N-14 for the above-referenced Trust.
The purpose of this Registration Statement is to register shares of beneficial interest of the above-named Portfolio under the 1933 Act. These shares are being registered pursuant to an Agreement and Plan of Reorganization pursuant to which Federated MDT Tax Aware/All Cap Core Fund, a portfolio of Federated MDT Series, will transfer substantially all of its assets to the Portfolio in exchange for shares of the Portfolio.
In connection with the review of this filing by staff of the Securities and Exchange Commission, the Portfolio acknowledges the staff’s view that: the Portfolio is responsible for the adequacy and accuracy of the disclosure in the filings; staff comments or changes to disclosure in response to staff comments in the filings reviewed by the staff do not foreclose the Commission from taking any action with respect to the filing; and the Portfolio may not assert staff comments as a defense in any proceeding initiated by the Commission or any person under the federal securities laws of the United States.
We would appreciate receiving any comments you may have by December 10, 2009. If you have any questions on the enclosed material, please do not hesitate to contact me at (412) 288-6659.
Very truly yours,
/s/ Joseph W. Kulbacki
Joseph W. Kulbacki
Senior Paralegal