PSIX open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, PSIX options within 45 days held 1,533 calls and 321 puts in open interest, a put/call ratio of 0.21. The biggest call strike near the money was 50 and the biggest put strike 50.
PSIX open interest by strike, within 5% of the close
50 carried 443 calls and 50 carried 69 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 PSIX pages.
These are the October 20, 2026 closing numbers. Members see PSIX's map move live all session.
Common questions
1,533 calls and 321 puts within 45 days at the October 20, 2026 close.
50 near the money, with 443 contracts.
50 near the money, with 69 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.