COF open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, COF options within 45 days held 11,829 calls and 8,464 puts in open interest, a put/call ratio of 0.72. The biggest call strike near the money was 210 and the biggest put strike 200.
COF open interest by strike, within 5% of the close
210 carried 2,014 calls and 200 carried 1,286 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 COF pages.
These are the October 20, 2026 closing numbers. Members see COF's map move live all session.
Common questions
11,829 calls and 8,464 puts within 45 days at the October 20, 2026 close.
210 near the money, with 2,014 contracts.
200 near the money, with 1,286 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.