COHR open interest by strike

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

At the October 20, 2026 close, COHR options within 45 days held 11,176 calls and 34,235 puts in open interest, a put/call ratio of 3.06. The biggest call strike near the money was 240 and the biggest put strike 240.

11,176
Call OI
34,235
Put OI
3.06
Put/call OI
1.14
Put/call volume

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

Strikeputs ← open interest → calls
242.5
240
237.5
235
232.5
230
227.5
225
222.5

240 carried 1,241 calls and 240 carried 3,638 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 COHR pages.

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

Common questions

What is COHR's open interest?

11,176 calls and 34,235 puts within 45 days at the October 20, 2026 close.

Which COHR strike has the most call open interest?

240 near the money, with 1,241 contracts.

Which COHR strike has the most put open interest?

240 near the money, with 3,638 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.