ACMR open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, ACMR options within 45 days held 1,523 calls and 4,231 puts in open interest, a put/call ratio of 2.78. The biggest call strike near the money was 55 and the biggest put strike 55.
ACMR open interest by strike, within 5% of the close
55 carried 135 calls and 55 carried 371 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 ACMR pages.
These are the October 20, 2026 closing numbers. Members see ACMR's map move live all session.
Common questions
1,523 calls and 4,231 puts within 45 days at the October 20, 2026 close.
55 near the money, with 135 contracts.
55 near the money, with 371 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.