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Is Today OPEX? Next Options Expiration Countdown and Max Pain

IS TODAY OPEX?
NoToday, Thursday, October 8, 2026 (New York)
Friday, October 16, 2026Next monthly options expiration
Thursday, October 15, 2026Last day to trade A.M.-settled SPX

Dates read off the Cboe 2026 options expiration calendar, not computed from a third-Friday rule.

Upcoming monthly expirations

MonthExpirationA.M. SPX last tradeVIX expirationSPX one sd to the close (as of Oct 8, 16:14 ET)
October 2026 OPEXFriday, October 16, 20262026-10-152026-10-21±1.57% / ±122.1 pts
November 2026 OPEXFriday, November 20, 20262026-11-192026-11-18±4.44% / ±346.2 pts
December 2026 OPEX (quarterly)Friday, December 18, 20262026-12-172026-12-16±5.89% / ±461.0 pts

Source: Cboe 2026 options expiration calendar. The one sd column is risk-neutral, not a forecast; method on the SPX expected move page. Every 2026 date is in the 2026 OPEX calendar.

COMMON QUESTIONS

When is October 2026 OPEX?
Friday, October 16, 2026, per the Cboe 2026 options expiration calendar. Standard A.M.-settled SPX options for October stop trading on Thursday, October 15, 2026.
What is OPEX?
Monthly options expiration. The definition, and how the quarterly expirations differ, is in the glossary: https://squawkflow.com/glossary/opex
Is VIX expiration the same day as OPEX?
No. VIX options and VX futures expire on a Wednesday, 30 days before the following month's SPX expiration. The next one is Wednesday, October 21, 2026.

What OPEX is: OPEX in the glossary. Every 2026 date: 2026 OPEX calendar.

Dealer gamma into expiration: SPX gamma exposure.