NOTE: PORTIONS OF THIS AGREEMENT ARE THE SUBJECT OF A CONFIDENTIAL TREATMENT REQUEST BY THE REGISTRANT TO THE SECURITIES AND EXCHANGE COMMISSION. SUCH PORTIONS HAVE BEEN REDACTED AND ARE MARKED WITH A [****] IN PLACE OF THE REDACTED LANGUAGE. AMENDMENT AGREEMENT

Exhibit 10.22

NOTE: PORTIONS OF THIS AGREEMENT ARE THE SUBJECT OF A

CONFIDENTIAL TREATMENT REQUEST BY THE REGISTRANT TO THE

SECURITIES AND EXCHANGE COMMISSION. SUCH PORTIONS HAVE BEEN

REDACTED AND ARE MARKED WITH A “[****]” IN PLACE OF THE REDACTED LANGUAGE.

AMENDMENT AGREEMENT

THIS AMENDMENT AGREEMENT (this “Amendment Agreement”) is made and entered into as of the 25^th day of June, 2010, among SAI Holdings, Inc. (“SAI”), Penson Financial Services, Inc. (“PFSI”), Penson Worldwide, Inc. (“PWI”), Penson Financial Services Ltd. (“PFSL”), Penson Financial Services Canada Inc. (“PFSC”), Broadridge Financial Solutions, Inc. (“Broadridge”), Ridge Clearing & Outsourcing Solutions, Inc. (“Ridge”), Broadridge Financial Solutions (Canada) Inc. (“Ridge Canada”) and Ridge Clearing & Outsourcing Solutions Limited. (“Ridge UK”),

W I T N E S S E T H:

WHEREAS, PWI has entered into an Asset Purchase Agreement with Broadridge, Ridge and PFSI dated November 2, 2009 (as amended by that certain Amendment, Assignment and Assumption Agreement (“Amendment, Assignment and Assumption Agreement”) dated of even date herewith among PWI, PFSI, SAI, Broadridge and Ridge, among others, and as further amended or modified from time to time, the “Asset Purchase Agreement”), pursuant to which Penson has agreed to acquire certain assets and liabilities relating to certain of Ridge’s clearing operations.

WHEREAS, Broadridge and PWI are parties to that certain Master Services Agreement, dated as of November 2, 2009 (as amended by the Amendment, Assignment and Assumption Agreement, and as further amended or modified from time to time, the “Master Services Agreement”) and pursuant to the Master Services Agreement, Ridge and PFSI have entered into that certain Schedule A (United States) Service Bureau Schedule to the Master Services Agreement, dated as of November 2, 2009 (as amended by the Amendment, Assignment and Assumption Agreement, and as further amended or modified from time to time, the “U.S. MSA Schedule”), and Ridge Canada and Penson Canada have entered into that certain Schedule A (Canada) Service Bureau Schedule to the Master Services Agreement, dated as of November 2, 2009 (as amended by the Amendment, Assignment and Assumption Agreement, and as further amended or modified from time to time, the “Canada MSA Schedule”), and Ridge U.K. and PFSL have entered into that certain Schedule A (United Kingdom) Service Bureau Schedule to the Master Services Agreement, dated as of November 2, 2009 (as amended by the Amendment, Assignment and Assumption Agreement, and as further amended or modified from time to time, the “U.K. MSA Schedule” and the U.S. MSA Schedule, Canada MSA Schedule and U.K. MSA Schedule, collectively, the “MSA Schedules” and each a “MSA Schedule”).

WHEREAS, the parties desire to make certain amendments to, and to clarify certain provisions of, the MSA Schedules and Asset Purchase Agreement.

NOW, THEREFORE, in consideration of the premises, the mutual covenants herein contained, and other good and valuable consideration the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

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[Remainder of Page Intentionally Left Blank; Signature Page Follows]

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IN WITNESS WHEREOF, this Amendment Agreement has been duly executed and delivered as of the date first above written.

[Signature Page to Amendment Agreement]

[Signature Page to Amendment Agreement]