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  <cov:submissionType>ATS-N/MA</cov:submissionType>
  <cov:rbOperatesPursuantToFormATS>N</cov:rbOperatesPursuantToFormATS>
  <cov:accessionNumber>0000310607-24-000016</cov:accessionNumber>
  <cov:filerCredentials>
    <cov:filerCik>0000310607</cov:filerCik>
    <cov:filerCcc>XXXXXXXX</cov:filerCcc>
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  <cov:fileNumber>013-00108</cov:fileNumber>
  <cov:txNMSStockATSName>Instinet BlockCross</cov:txNMSStockATSName>
  <cov:taStatementAboutAmendment>This amendment reduces the minimum size requirement for AutoEx orders and Activity Alerts. Part III Item 7 is amended to permit Subscribers to include the timing option of automatic cancelation of day orders if the remaining shares after a partial fill are less than 100 shares.  Part III Item 8: (a) reduces the minimum shares requirement for AutoEx orders from 2,500 to 100; (b) reduces the number of contra-side shares that Subscribers must have registered to the Front End to be eligible to receive Activity Alerts from 5,000 to 2,500; and (c) reduces the number of shares required to be registered to the Front End in order to generate an Activity Alert from 5,000 to 2,500. The changes herein apply to all Subscribers and the Broker-Dealer Operator.</cov:taStatementAboutAmendment>
  <cov:liveTestFlag>LIVE</cov:liveTestFlag>
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