Joint Industry Plan; Notice of Filing and Immediate Effectiveness of the Fifteenth Amendment to the National Market System Plan To Address Extraordinary Market Volatility by Bats BZX Exchange, Inc., Bats BYX Exchange, Inc., Bats EDGA Exchange, Inc., Bats EDGX Exchange, Inc., Chicago Stock Exchange, Inc., Financial Industry Regulatory Authority, Inc., Investors Exchange LLC, NASDAQ BX, Inc., NASDAQ PHLX LLC, The Nasdaq Stock Market LLC, NYSE National, Inc., New York Stock Exchange LLC, NYSE American LLC, and NYSE Arca, Inc.

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82 FR 45922

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“Joint Industry Plan; Notice of Filing and Immediate Effectiveness of the Fifteenth Amendment to the National Market System Plan To Address Extraordinary Market Volatility by Bats BZX Exchange, Inc., Bats BYX Exchange, Inc., Bats EDGA Exchange, Inc., Bats EDGX Exchange, Inc., Chicago Stock Exchange, Inc., Financial Industry Regulatory Authority, Inc., Investors Exchange LLC, NASDAQ BX, Inc., NASDAQ PHLX LLC, The Nasdaq Stock Market LLC, NYSE National, Inc., New York Stock Exchange LLC, NYSE American LLC, and NYSE Arca, Inc.,” thefederalregister.org (October 2, 2017), https://thefederalregister.org/documents/2017-20974/joint-industry-plan-notice-of-filing-and-immediate-effectiveness-of-the-fifteenth-amendment-to-the-national-market-syste.