SLS open interest by strike

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

At the October 20, 2026 close, SLS options within 45 days held 18,266 calls and 9,061 puts in open interest, a put/call ratio of 0.5. The biggest call strike near the money was 12 and the biggest put strike 11.5.

18,266
Call OI
9,061
Put OI
0.5
Put/call OI
0.28
Put/call volume

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

Strikeputs ← open interest → calls
12.5
12
11.5

12 carried 3,123 calls and 11.5 carried 416 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 SLS pages.

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

Common questions

What is SLS's open interest?

18,266 calls and 9,061 puts within 45 days at the October 20, 2026 close.

Which SLS strike has the most call open interest?

12 near the money, with 3,123 contracts.

Which SLS strike has the most put open interest?

11.5 near the money, with 416 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.