RSP open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, RSP options within 45 days held 27,712 calls and 26,206 puts in open interest, a put/call ratio of 0.95. The biggest call strike near the money was 215 and the biggest put strike 215.
RSP open interest by strike, within 5% of the close
215 carried 13,257 calls and 215 carried 8,334 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 RSP pages.
These are the October 20, 2026 closing numbers. Members see RSP's map move live all session.
Common questions
27,712 calls and 26,206 puts within 45 days at the October 20, 2026 close.
215 near the money, with 13,257 contracts.
215 near the money, with 8,334 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.