GPN open interest by strike

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

At the October 20, 2026 close, GPN options within 45 days held 7,605 calls and 1,736 puts in open interest, a put/call ratio of 0.23. The biggest call strike near the money was 85 and the biggest put strike 85.

7,605
Call OI
1,736
Put OI
0.23
Put/call OI
0.05
Put/call volume

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

Strikeputs ← open interest → calls
87.5
85
82.5

85 carried 3,333 calls and 85 carried 164 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 GPN pages.

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

Common questions

What is GPN's open interest?

7,605 calls and 1,736 puts within 45 days at the October 20, 2026 close.

Which GPN strike has the most call open interest?

85 near the money, with 3,333 contracts.

Which GPN strike has the most put open interest?

85 near the money, with 164 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.