MPC open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, MPC options within 45 days held 8,947 calls and 4,242 puts in open interest, a put/call ratio of 0.47. The biggest call strike near the money was 480 and the biggest put strike 460.
MPC open interest by strike, within 5% of the close
480 carried 390 calls and 460 carried 587 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 MPC pages.
These are the October 20, 2026 closing numbers. Members see MPC's map move live all session.
Common questions
8,947 calls and 4,242 puts within 45 days at the October 20, 2026 close.
480 near the money, with 390 contracts.
460 near the money, with 587 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.