Month	Expiration	Type
August 2026	Friday, Aug 21, 2026	Monthly expiration
September 2026	Friday, Sep 18, 2026	Quadruple witching
October 2026	Friday, Oct 16, 2026	Monthly expiration
November 2026	Friday, Nov 20, 2026	Monthly expiration
December 2026	Friday, Dec 18, 2026	Quadruple witching
January 2027	Friday, Jan 15, 2027	Monthly expiration
February 2027	Friday, Feb 19, 2027	Monthly expiration
March 2027	Friday, Mar 19, 2027	Quadruple witching
April 2027	Friday, Apr 16, 2027	Monthly expiration
May 2027	Friday, May 21, 2027	Monthly expiration
June 2027	Thursday, Jun 17, 2027	Moved — third Friday is a holiday
July 2027	Friday, Jul 16, 2027	Monthly expiration

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When is OpEx this month?

Friday, August 21, 2026. Monthly options expiration falls on the third Friday of each month.

What is OpEx?

OpEx is options expiration — the day monthly equity and index options stop trading and settle. It falls on the third Friday of each month. Volume and volatility often rise into the close as dealers and traders roll or close expiring positions.

What is quadruple witching?

Quadruple witching is the quarterly expiration — March, June, September and December — when stock index futures, index options, stock options and single-stock futures all expire on the same day. It is usually the heaviest volume session of the quarter. The next one is Friday, September 18, 2026.

Does OpEx ever fall on a day other than Friday?

Yes. If the third Friday is an exchange holiday, expiration moves back to the Thursday. It is rare but it does happen — for example when quad witching collides with Juneteenth.

Why does OpEx matter for traders?

Large amounts of open interest expire at once, so dealer hedging unwinds. That can pin price near heavily-traded strikes into the close, and can free the market to move in the days afterwards once that hedging rolls off.