ROK open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, ROK options within 45 days held 2,159 calls and 1,811 puts in open interest, a put/call ratio of 0.84. The biggest call strike near the money was 440 and the biggest put strike 420.
ROK open interest by strike, within 5% of the close
440 carried 117 calls and 420 carried 289 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 ROK pages.
These are the October 20, 2026 closing numbers. Members see ROK's map move live all session.
Common questions
2,159 calls and 1,811 puts within 45 days at the October 20, 2026 close.
440 near the money, with 117 contracts.
420 near the money, with 289 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.