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<cov:edgarSubmission xmlns:cov="http://www.sec.gov/edgar/atsn/cover" xmlns:ats="http://www.sec.gov/edgar/atsncommon">
  <cov:submissionType>ATS-N/MA</cov:submissionType>
  <cov:rbOperatesPursuantToFormATS>N</cov:rbOperatesPursuantToFormATS>
  <cov:accessionNumber>0000902664-23-002834</cov:accessionNumber>
  <cov:filerCredentials>
    <cov:filerCik>0000310607</cov:filerCik>
    <cov:filerCcc>XXXXXXXX</cov:filerCcc>
  </cov:filerCredentials>
  <cov:fileNumber>013-00105</cov:fileNumber>
  <cov:txNMSStockATSName>CBX</cov:txNMSStockATSName>
  <cov:taStatementAboutAmendment>Part III Items 11 and 14 are being amended to add the ability for an Indirect Subscriber to utilize an Instinet Algorithm or SOR to submit trading interest to the Conditional Session that is only eligible to interact with one or more counterparties in a "hosted pool." Part III Items 7 and 11 are being amended to indicate that Instinet, LLC may configure a hosted pool to split price improvement equally between both sides of an execution for all executions in that pool. There are no other changes in this amendment. The changes herein impact all Subscriber orders within the Conditional Session. While the changes herein are not applicable to Instinet, LLC as ATS operator, Instinet, LLC may route non-directed customer orders to the Conditional Session via an Instinet Algorithm or SOR, and the changes herein impact the manner in which such orders will interact with the orders of other Subscribers within the Conditional Session.</cov:taStatementAboutAmendment>
  <cov:liveTestFlag>LIVE</cov:liveTestFlag>
  <cov:flags>
    <cov:overrideInternetFlag>false</cov:overrideInternetFlag>
    <cov:confirmingCopyFlag>false</cov:confirmingCopyFlag>
  </cov:flags>
</cov:edgarSubmission>