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Contract OI history

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Dec 18, 2026 EXPIRATION

ZETA $35.00 Put

ZETA261218P00035000

Latest saved OI388Oct 23, 2026
Last change+8vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZETA $35.00 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. 3881940 2026-10-02: 361 OI2026-10-05: 361 OI2026-10-06: 377 OI2026-10-07: 377 OI2026-10-08: 377 OI2026-10-09: 377 OI2026-10-13: 379 OI2026-10-14: 379 OI2026-10-15: 378 OI2026-10-16: 379 OI2026-10-21: 380 OI2026-10-23: 388 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, 2026Viewing388+8
Oct 21, 2026380+1
Oct 16, 2026379+1
Oct 15, 2026378-1
Oct 14, 20263790
Oct 13, 2026379+2
Oct 09, 20263770
Oct 08, 20263770
Oct 07, 20263770
Oct 06, 2026377+16
Oct 05, 20263610
Oct 02, 2026361No prior observation