ZETA open interest by strike

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

At the October 20, 2026 close, ZETA options within 45 days held 44,116 calls and 8,766 puts in open interest, a put/call ratio of 0.2. The biggest call strike near the money was 35 and the biggest put strike 33.

44,116
Call OI
8,766
Put OI
0.2
Put/call OI
0.2
Put/call volume

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

Strikeputs ← open interest → calls
35
34.5
34
33.5
33
32.5
32

35 carried 15,025 calls and 33 carried 890 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 ZETA pages.

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

Common questions

What is ZETA's open interest?

44,116 calls and 8,766 puts within 45 days at the October 20, 2026 close.

Which ZETA strike has the most call open interest?

35 near the money, with 15,025 contracts.

Which ZETA strike has the most put open interest?

33 near the money, with 890 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.