MMM open interest by strike

From the closing options book · October 20, 2026 · updated after every close

At the October 20, 2026 close, MMM options within 45 days held 31,622 calls and 12,266 puts in open interest, a put/call ratio of 0.39. The biggest call strike near the money was 175 and the biggest put strike 165.

31,622
Call OI
12,266
Put OI
0.39
Put/call OI
0.57
Put/call volume

MMM open interest by strike, within 5% of the close

Strikeputs ← open interest → calls
177.5
175
172.5
170
167.5
165

175 carried 12,373 calls and 165 carried 1,410 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 MMM pages.

These are the October 20, 2026 closing numbers. Members see MMM's map move live all session.

Common questions

What is MMM's open interest?

31,622 calls and 12,266 puts within 45 days at the October 20, 2026 close.

Which MMM strike has the most call open interest?

175 near the money, with 12,373 contracts.

Which MMM strike has the most put open interest?

165 near the money, with 1,410 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.