FDS open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, FDS options within 45 days held 1,171 calls and 626 puts in open interest, a put/call ratio of 0.53. The biggest call strike near the money was 300 and the biggest put strike 300.
FDS open interest by strike, within 5% of the close
300 carried 374 calls and 300 carried 25 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 FDS pages.
These are the October 20, 2026 closing numbers. Members see FDS's map move live all session.
Common questions
1,171 calls and 626 puts within 45 days at the October 20, 2026 close.
300 near the money, with 374 contracts.
300 near the money, with 25 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.