ROBN open interest by strike

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

At the October 20, 2026 close, ROBN options within 45 days held 127 calls and 2,176 puts in open interest, a put/call ratio of 17.13. The biggest call strike near the money was 25 and the biggest put strike 25.

127
Call OI
2,176
Put OI
17.13
Put/call OI
0.93
Put/call volume

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

Strikeputs ← open interest → calls
25
24
23

25 carried 44 calls and 25 carried 364 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 ROBN pages.

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

Common questions

What is ROBN's open interest?

127 calls and 2,176 puts within 45 days at the October 20, 2026 close.

Which ROBN strike has the most call open interest?

25 near the money, with 44 contracts.

Which ROBN strike has the most put open interest?

25 near the money, with 364 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.