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Contract OI history

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Jan 15, 2027 EXPIRATION

ZETA $22.50 Put

ZETA270115P00022500

Latest saved OI1,908Oct 23, 2026
Last change-6vs 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. 2,2991,1490 2026-10-02: 2,258 OI2026-10-05: 2,258 OI2026-10-06: 2,299 OI2026-10-07: 1,922 OI2026-10-08: 1,922 OI2026-10-09: 1,920 OI2026-10-13: 1,916 OI2026-10-14: 1,916 OI2026-10-15: 1,916 OI2026-10-16: 1,916 OI2026-10-21: 1,914 OI2026-10-23: 1,908 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, 20261,908-6
Oct 21, 2026Viewing1,914-2
Oct 16, 20261,9160
Oct 15, 20261,9160
Oct 14, 20261,9160
Oct 13, 20261,916-4
Oct 09, 20261,920-2
Oct 08, 20261,9220
Oct 07, 20261,922-377
Oct 06, 20262,299+41
Oct 05, 20262,2580
Oct 02, 20262,258No prior observation