GDX open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, GDX options within 45 days held 121,410 calls and 54,524 puts in open interest, a put/call ratio of 0.45. The biggest call strike near the money was 90 and the biggest put strike 85.
GDX open interest by strike, within 5% of the close
90 carried 12,875 calls and 85 carried 7,799 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 GDX pages.
These are the October 20, 2026 closing numbers. Members see GDX's map move live all session.
Common questions
121,410 calls and 54,524 puts within 45 days at the October 20, 2026 close.
90 near the money, with 12,875 contracts.
85 near the money, with 7,799 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.