<SEC-DOCUMENT>0001340807-25-000007.txt : 20251107
<SEC-HEADER>0001340807-25-000007.hdr.sgml : 20251107
<ACCEPTANCE-DATETIME>20251107180618
ACCESSION NUMBER:		0001340807-25-000007
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251107
DATE AS OF CHANGE:		20251107

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Interactive Brokers Group, Inc.
		CENTRAL INDEX KEY:			0001381197
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		ORGANIZATION NAME:           	09 Crypto Assets
		EIN:				300390693
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-82876
		FILM NUMBER:		251463844

	BUSINESS ADDRESS:	
		STREET 1:		ONE PICKWICK PLAZA
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
		BUSINESS PHONE:		203-618-5800

	MAIL ADDRESS:	
		STREET 1:		ONE PICKWICK PLAZA
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Bares Capital Management, Inc.
		CENTRAL INDEX KEY:			0001340807
		ORGANIZATION NAME:           	
		EIN:				742961140
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		12600 HILL COUNTRY BLVD
		STREET 2:		SUITE R-230
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78738
		BUSINESS PHONE:		512-542-1083

	MAIL ADDRESS:	
		STREET 1:		12600 HILL COUNTRY BLVD
		STREET 2:		SUITE R-230
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78738
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G/A</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001340807</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
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      <liveTestFlag>LIVE</liveTestFlag>



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  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>5</amendmentNo>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>10/31/2025</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001381197</issuerCik>
        <issuerName>Interactive Brokers Group, Inc.</issuerName>
        <issuerCusip>45841N107</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>ONE PICKWICK PLAZA</com:street1>
          <com:city>GREENWICH</com:city>
          <com:stateOrCountry>CT</com:stateOrCountry>
          <com:zipCode>06830</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
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    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Bares Capital Management, Inc.</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>Interactive Brokers Group, Inc.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>ONE PICKWICK PLAZA, GREENWICH, CONNECTICUT, 06830</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Bares Capital Management, Inc.</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>12600 Hill Country Blvd., Suite R-230
Austin, TX 78669</principalBusinessOfficeOrResidenceAddress>
        <citizenship>USA</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
      </item3>
      <item5>
        <classOwnership5PercentOrLess>Y</classOwnership5PercentOrLess>
      </item5>
      <item6>
        <notApplicableFlag>Y</notApplicableFlag>
      </item6>
      <item7>
        <notApplicableFlag>Y</notApplicableFlag>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>N</notApplicableFlag>
        <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under &amp;#167; 240.14a-11.

</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>Bares Capital Management, Inc.</reportingPersonName>
      <signatureDetails>
        <signature>James J. Creel Jr. </signature>
        <title>CEO</title>
        <date>11/07/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
