ZS open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, ZS options within 45 days held 26,455 calls and 20,211 puts in open interest, a put/call ratio of 0.76. The biggest call strike near the money was 220 and the biggest put strike 210.
ZS open interest by strike, within 5% of the close
220 carried 4,484 calls and 210 carried 2,413 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 ZS pages.
These are the October 20, 2026 closing numbers. Members see ZS's map move live all session.
Common questions
26,455 calls and 20,211 puts within 45 days at the October 20, 2026 close.
220 near the money, with 4,484 contracts.
210 near the money, with 2,413 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.