MBB open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, MBB options within 45 days held 702 calls and 327 puts in open interest, a put/call ratio of 0.47. The biggest call strike near the money was 92 and the biggest put strike 89.
MBB open interest by strike, within 5% of the close
92 carried 315 calls and 89 carried 200 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 MBB pages.
These are the October 20, 2026 closing numbers. Members see MBB's map move live all session.
Common questions
702 calls and 327 puts within 45 days at the October 20, 2026 close.
92 near the money, with 315 contracts.
89 near the money, with 200 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.