When do equity and ETF options stop trading?

Most stop trading at the market close, however some trade 15-min. after the close

Options on most underlyings close when the market closes at 3:00 pm Central Time (Chicago Time). However, there is a handful of ETF options that trade until 3:15 pm Central Time or 15-minutes after the equity markets close (3:00 pm Central).

Options that trade until 3:15 pm Central Time (Chicago time)

AUM, AUX, BACD, BPX, BRB, BSZ, BVZ, CDD, CITD, DBA, DBB, DBC, DBO, DBS, DIA, DJX, EEM, EFA, EUI, EUU, GAZ, GBP, GSSD, IWM, IWN, IWO, IWV, JJC, JPMD, KBE, KRE, MDY, MLPN, MNX, MOO, MRUT, MSTD, NDO, NDX, NZD, OEF, OEX, OIL, PZO, QQQ, RUT, RVX, SFC, SKA, SLX, SPX, SPX (PM Expiration), SPY, SVXY, UNG, UUP, UVIX, UVXY, VIIX, VIX, VIXM, VIXY, VXEEM, VXST, VXX, VXZ, XEO, XHB, XLB, XLE, XLF, XLI, XLK, XLP, XLU, XLV, XLY, XME, XRT, XSP, XSP (AM Expiration), & YUK

Exception for Cash-Settled Indices

All PM-settled day of expiration options for NDX, RUT, SPX, OEX and XEO stop trading at 3:00 pm.