KCG 10-Q 2015 Q2 Quarterly report

EXHIBIT 32.2

Statement of Chief Financial Officer Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of KCG Holdings, Inc. (the “Company”) for the quarter ended June 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Steffen Parratt as Chief Financial Officer of the Company, hereby certifies, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:

1. The Report fully complies with the requirements of Section 13(a) or, 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

	/S/    STEFFEN PARRATT
Name: Title: Date:	Steffen Parratt Chief Financial Officer August 10, 2015

This certification accompanies the Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.