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Contract OI history

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Dec 18, 2026 EXPIRATION

ZETA $22.50 Put

ZETA261218P00022500

Latest saved OI562Oct 23, 2026
Last change0vs 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. 5652820 2026-10-02: 456 OI2026-10-05: 456 OI2026-10-06: 472 OI2026-10-07: 472 OI2026-10-08: 472 OI2026-10-09: 472 OI2026-10-13: 565 OI2026-10-14: 565 OI2026-10-15: 561 OI2026-10-16: 561 OI2026-10-21: 562 OI2026-10-23: 562 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, 20265620
Oct 21, 2026Viewing562+1
Oct 16, 20265610
Oct 15, 2026561-4
Oct 14, 20265650
Oct 13, 2026565+93
Oct 09, 20264720
Oct 08, 20264720
Oct 07, 20264720
Oct 06, 2026472+16
Oct 05, 20264560
Oct 02, 2026456No prior observation