when do spx weekly options expire?
NEW â SPX Weeklys Now PM Settled. On Thursday, December 2, 2010, CBOE commenced trading of PM-settled End-of-Week (âWeek-Endsâ) SPX Options for expiration on Friday, December 10, 2010. With the commencement of trading in PM-settled End-of-Week SPX options CBOE discontinued the listing of SPX AM-settled Short Term Options.