TMO open interest by strike

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

At the October 20, 2026 close, TMO options within 45 days held 6,131 calls and 7,804 puts in open interest, a put/call ratio of 1.27. The biggest call strike near the money was 700 and the biggest put strike 670.

6,131
Call OI
7,804
Put OI
1.27
Put/call OI
0.37
Put/call volume

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

Strikeputs ← open interest → calls
720
715
710
705
700
695
690
685
680
677.5
675
672.5
670
667.5
665
662.5
660
657.5
655

700 carried 756 calls and 670 carried 466 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 TMO pages.

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

Common questions

What is TMO's open interest?

6,131 calls and 7,804 puts within 45 days at the October 20, 2026 close.

Which TMO strike has the most call open interest?

700 near the money, with 756 contracts.

Which TMO strike has the most put open interest?

670 near the money, with 466 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.