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Contract OI history

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Dec 18, 2026 EXPIRATION

ZETA $25.00 Put

ZETA261218P00025000

Latest saved OI2,263Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZETA $25.00 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. 2,3061,1530 2026-10-02: 2,134 OI2026-10-05: 2,134 OI2026-10-06: 2,133 OI2026-10-07: 2,208 OI2026-10-08: 2,208 OI2026-10-09: 2,291 OI2026-10-13: 2,306 OI2026-10-14: 2,306 OI2026-10-15: 2,266 OI2026-10-16: 2,247 OI2026-10-21: 2,261 OI2026-10-23: 2,263 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, 20262,263+2
Oct 21, 2026Viewing2,261+14
Oct 16, 20262,247-19
Oct 15, 20262,266-40
Oct 14, 20262,3060
Oct 13, 20262,306+15
Oct 09, 20262,291+83
Oct 08, 20262,2080
Oct 07, 20262,208+75
Oct 06, 20262,133-1
Oct 05, 20262,1340
Oct 02, 20262,134No prior observation