Exhibit 99

                       Information Regarding Joint Filers

Designated Filer of Form 4: Daniel Zeff

Date of Earliest Transaction Required to be Reported: August 31, 2005

Issuer Name and Ticker Symbol: American Physicians Service Group, Inc. (AMPH)

Name:    Zeff Holding Company, LLC, Zeff Capital Partners I, L.P. and Spectrum
         Galaxy Fund Ltd.

Address: 50 California Street
         Suite 1500
         San Francisco, CA 94111

Signatures:

The undersigned, Zeff Holding Company, LLC, Zeff Capital Partners I, L.P. and
Spectrum Galaxy Fund Ltd., are jointly filing the attached Statement of Changes
in Beneficial Ownership of Securities on Form 4 with Daniel Zeff with respect to
the beneficial ownership of securities of American Physicians Service Group,
Inc.


ZEFF HOLDING COMPANY, LLC                 ZEFF CAPITAL PARTNERS I, L.P

                                          By: Zeff Holding Company, LLC, as
                                              general partner


By: /s/ Daniel Zeff                           By: /s/ Daniel Zeff
    ------------------------------                ------------------------------
Name:  Daniel Zeff                                    Name:  Daniel Zeff
Title: Manager                                        Title: Manager

SPECTRUM GALAXY FUND LTD.


By: /s/ Dion R. Friedland
    ------------------------------
    Name:  Dion R. Friedland
    Title: Director