SIG open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, SIG options within 45 days held 6,622 calls and 747 puts in open interest, a put/call ratio of 0.11. The biggest call strike near the money was 110 and the biggest put strike 120.
SIG open interest by strike, within 5% of the close
110 carried 2,056 calls and 120 carried 83 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 SIG pages.
These are the October 20, 2026 closing numbers. Members see SIG's map move live all session.
Common questions
6,622 calls and 747 puts within 45 days at the October 20, 2026 close.
110 near the money, with 2,056 contracts.
120 near the money, with 83 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.