S open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, S options within 45 days held 15,206 calls and 12,328 puts in open interest, a put/call ratio of 0.81. The biggest call strike near the money was 23 and the biggest put strike 22.
S open interest by strike, within 5% of the close
23 carried 3,934 calls and 22 carried 1,047 puts.
Open interest counts contracts still open after the close; it settles overnight. Large strikes are where dealer hedging is concentrated, which is why open interest feeds the gamma levels and max pain on the other S pages.
These are the October 20, 2026 closing numbers. Members see S's map move live all session.
Common questions
15,206 calls and 12,328 puts within 45 days at the October 20, 2026 close.
23 near the money, with 3,934 contracts.
22 near the money, with 1,047 contracts.
Compare: open interest by strike on other tickers
Measured from the closing options book and rebuilt after every close. Nothing on this page is live. Levels are where dealer hedging is concentrated, not targets or forecasts. Not investment advice.