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<?xml version="1.0" encoding="windows-1252"?> |
<edgarSubmission xsi:schemaLocation="http://www.sec.gov/edgar/thirteenffiler eis_13F_Filer.xsd" xmlns="http://www.sec.gov/edgar/thirteenffiler" xmlns:ns1="http://www.sec.gov/edgar/common" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> |
| <headerData> |
| | <submissionType> 13F-HR </submissionType> |
| | <filerInfo> |
| | | <liveTestFlag> LIVE </liveTestFlag> |
| | | <flags> |
| <confirmingCopyFlag> false </confirmingCopyFlag> |
| <returnCopyFlag> true </returnCopyFlag> |
| <overrideInternetFlag> false </overrideInternetFlag> |
| </flags> |
| | | <filer> |
| <credentials> |
| <cik> 0001569391 </cik> |
| <ccc> XXXXXXXX </ccc> |
| </credentials> |
| </filer> |
| | | <periodOfReport> 03-31-2017 </periodOfReport> |
| | | </filerInfo> |
| | </headerData> |
| <formData> |
| | <coverPage> |
| | | <reportCalendarOrQuarter> 03-31-2017 </reportCalendarOrQuarter> |
| | | <filingManager> |
| <name> KCG HOLDINGS, INC. </name> |
| <address> |
| <ns1:street1> 300 VESEY STREET </ns1:street1> |
| <ns1:city> NEW YORK </ns1:city> |
| <ns1:stateOrCountry> NY </ns1:stateOrCountry> |
| <ns1:zipCode> 10282 </ns1:zipCode> |
| </address> |
| </filingManager> |
| | | <reportType> 13F HOLDINGS REPORT </reportType> |
| | | <form13FFileNumber> 028-15626 </form13FFileNumber> |
| | | <provideInfoForInstruction5> N </provideInfoForInstruction5> |
| | | </coverPage> |
| | <signatureBlock> |
| | | <name> Alex Sadowski </name> |
| | | <title> Deputy General Counsel </title> |
| | | <phone> 646-682-6643 </phone> |
| | | <signature> Alex Sadowski </signature> |
| | | <city> New York </city> |
| | | <stateOrCountry> NY </stateOrCountry> |
| | | <signatureDate> 05-08-2017 </signatureDate> |
| | | </signatureBlock> |
| | <summaryPage> |
| | | <otherIncludedManagersCount> 1 </otherIncludedManagersCount> |
| | | <tableEntryTotal> 3068 </tableEntryTotal> |
| | | <tableValueTotal> 3608575 </tableValueTotal> |
| | | <isConfidentialOmitted> false </isConfidentialOmitted> |
| | | <otherManagers2Info> |
| <otherManager2> |
| <sequenceNumber> 1 </sequenceNumber> |
| <otherManager> |
| <form13FFileNumber> 28-15067 </form13FFileNumber> |
| <name> KCG Americas LLC </name> |
| </otherManager> |
| </otherManager2> |
| </otherManagers2Info> |
| | | </summaryPage> |
| | </formData> |
| </edgarSubmission> |