Regular Hours: 8:30 a.m. to 3:15 p.m. (Chicago). Expiring Mini-SPX (XSP) Weeklys and End Of Month: On the last
trading day, trading in both expiring Mini-SPX (XSP) Weeklys and End of Month closes at 3:00 p.m. (Chicago). All
non-expiring XSP Weeklys and End of Month continue to trade until 3:15 p.m. (Chicago).
Curb: 3:15p.m. to 4:00 p.m. (Chicago)
Global Trading Hours: 7:15 p.m. to 8:15 a.m. (Chicago)