BAX open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, BAX options within 45 days held 10,640 calls and 3,933 puts in open interest, a put/call ratio of 0.37. The biggest call strike near the money was 25 and the biggest put strike 25.
BAX open interest by strike, within 5% of the close
25 carried 4,352 calls and 25 carried 1,167 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 BAX pages.
These are the October 20, 2026 closing numbers. Members see BAX's map move live all session.
Common questions
10,640 calls and 3,933 puts within 45 days at the October 20, 2026 close.
25 near the money, with 4,352 contracts.
25 near the money, with 1,167 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.