TMDX open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, TMDX options within 45 days held 4,868 calls and 4,844 puts in open interest, a put/call ratio of 1. The biggest call strike near the money was 75 and the biggest put strike 73.
TMDX open interest by strike, within 5% of the close
75 carried 2,944 calls and 73 carried 307 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 TMDX pages.
These are the October 20, 2026 closing numbers. Members see TMDX's map move live all session.
Common questions
4,868 calls and 4,844 puts within 45 days at the October 20, 2026 close.
75 near the money, with 2,944 contracts.
73 near the money, with 307 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.