ESI open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, ESI options within 45 days held 29,382 calls and 14,862 puts in open interest, a put/call ratio of 0.51. The biggest call strike near the money was 35 and the biggest put strike 36.
ESI open interest by strike, within 5% of the close
35 carried 8,793 calls and 36 carried 4,255 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 ESI pages.
These are the October 20, 2026 closing numbers. Members see ESI's map move live all session.
Common questions
29,382 calls and 14,862 puts within 45 days at the October 20, 2026 close.
35 near the money, with 8,793 contracts.
36 near the money, with 4,255 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.