GEN open interest by strike

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

At the October 20, 2026 close, GEN options within 45 days held 5,432 calls and 1,696 puts in open interest, a put/call ratio of 0.31. The biggest call strike near the money was 23 and the biggest put strike 24.

5,432
Call OI
1,696
Put OI
0.31
Put/call OI
0.17
Put/call volume

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

Strikeputs ← open interest → calls
25
24
23

23 carried 1,108 calls and 24 carried 421 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 GEN pages.

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

Common questions

What is GEN's open interest?

5,432 calls and 1,696 puts within 45 days at the October 20, 2026 close.

Which GEN strike has the most call open interest?

23 near the money, with 1,108 contracts.

Which GEN strike has the most put open interest?

24 near the money, with 421 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.