UMAC open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, UMAC options within 45 days held 2,720 calls and 6,574 puts in open interest, a put/call ratio of 2.42. The biggest call strike near the money was 17 and the biggest put strike 17.
UMAC open interest by strike, within 5% of the close
17 carried 318 calls and 17 carried 513 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 UMAC pages.
These are the October 20, 2026 closing numbers. Members see UMAC's map move live all session.
Common questions
2,720 calls and 6,574 puts within 45 days at the October 20, 2026 close.
17 near the money, with 318 contracts.
17 near the money, with 513 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.