Beginning Monday, November 21, 2022, CME will allow Pit Trades to be designated with a Spread Type of “LS” through both the FECPlus UI and via API messaging. This “LS” Spread Type is being introduced in anticipation of fee waivers that CME plans to implement beginning in November 2022*. A Spread Type of “LS” signifies that the traded leg was executed as part of a qualifying “Eurodollar-SOFR” Options Spread.
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