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Contract OI history

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Mar 19, 2027 EXPIRATION

ZETA $22.50 Put

ZETA270319P00022500

Latest saved OI311Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZETA $22.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3111550 2026-10-02: 275 OI2026-10-05: 275 OI2026-10-06: 276 OI2026-10-07: 276 OI2026-10-08: 276 OI2026-10-09: 276 OI2026-10-13: 276 OI2026-10-14: 276 OI2026-10-15: 276 OI2026-10-16: 301 OI2026-10-21: 301 OI2026-10-23: 311 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ZETA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026311+10
Oct 21, 2026Viewing3010
Oct 16, 2026301+25
Oct 15, 20262760
Oct 14, 20262760
Oct 13, 20262760
Oct 09, 20262760
Oct 08, 20262760
Oct 07, 20262760
Oct 06, 2026276+1
Oct 05, 20262750
Oct 02, 2026275No prior observation