Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement onForm S-3 of our report dated February 29, 2016 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in KCG Holdings, Inc.’s Annual Report on Form10-K for the year ended December 31, 2015. We also consent to the reference to us under the heading “Experts” in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
New York, New York
July 7, 2016
