MP open interest by strike

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

At the October 20, 2026 close, MP options within 45 days held 11,431 calls and 23,609 puts in open interest, a put/call ratio of 2.07. The biggest call strike near the money was 40 and the biggest put strike 40.

11,431
Call OI
23,609
Put OI
2.07
Put/call OI
0.46
Put/call volume

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

Strikeputs ← open interest → calls
41
40.5
40
39.5
39
38.5
38
37.5

40 carried 1,743 calls and 40 carried 3,198 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 MP pages.

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

Common questions

What is MP's open interest?

11,431 calls and 23,609 puts within 45 days at the October 20, 2026 close.

Which MP strike has the most call open interest?

40 near the money, with 1,743 contracts.

Which MP strike has the most put open interest?

40 near the money, with 3,198 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.