MSI open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, MSI options within 45 days held 2,674 calls and 654 puts in open interest, a put/call ratio of 0.24. The biggest call strike near the money was 450 and the biggest put strike 480.
MSI open interest by strike, within 5% of the close
450 carried 1,020 calls and 480 carried 70 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 MSI pages.
These are the October 20, 2026 closing numbers. Members see MSI's map move live all session.
Common questions
2,674 calls and 654 puts within 45 days at the October 20, 2026 close.
450 near the money, with 1,020 contracts.
480 near the money, with 70 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.