Effective Sunday, October 17 (trade date Monday, October 18), the strike listing rules for the European-style weekly options on the S&P 500 and the E-mini S&P 500 strike ranges will be expanded for all listed maturities.
With this change, all maturities of the European-style weekly S&P options will list at-the-money (ATM) ± 30 strikes. Currently, ATM ±10 strikes are listed for all maturities.
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