REGN open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, REGN options within 45 days held 2,463 calls and 1,562 puts in open interest, a put/call ratio of 0.63. The biggest call strike near the money was 790 and the biggest put strike 780.
REGN open interest by strike, within 5% of the close
790 carried 294 calls and 780 carried 113 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 REGN pages.
These are the October 20, 2026 closing numbers. Members see REGN's map move live all session.
Common questions
2,463 calls and 1,562 puts within 45 days at the October 20, 2026 close.
790 near the money, with 294 contracts.
780 near the money, with 113 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.