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Contract OI history

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Nov 20, 2026 EXPIRATION

ZETA $25.00 Put

ZETA261120P00025000

Latest saved OI505Oct 23, 2026
Last change+16vs 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. 5052520 2026-10-02: 329 OI2026-10-05: 331 OI2026-10-06: 317 OI2026-10-07: 324 OI2026-10-08: 324 OI2026-10-09: 326 OI2026-10-13: 397 OI2026-10-14: 397 OI2026-10-15: 439 OI2026-10-16: 446 OI2026-10-21: 489 OI2026-10-23: 505 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, 2026505+16
Oct 21, 2026Viewing489+43
Oct 16, 2026446+7
Oct 15, 2026439+42
Oct 14, 20263970
Oct 13, 2026397+71
Oct 09, 2026326+2
Oct 08, 20263240
Oct 07, 2026324+7
Oct 06, 2026317-14
Oct 05, 2026331+2
Oct 02, 2026329No prior observation