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Contract OI history

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Jan 21, 2028 EXPIRATION

ZETA $40.00 Call

ZETA280121C00040000

Latest saved OI582Oct 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 $40.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6083040 2026-10-02: 529 OI2026-10-05: 529 OI2026-10-06: 561 OI2026-10-07: 608 OI2026-10-08: 608 OI2026-10-09: 602 OI2026-10-13: 605 OI2026-10-14: 605 OI2026-10-15: 596 OI2026-10-16: 600 OI2026-10-21: 598 OI2026-10-23: 582 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, 2026Viewing582-16
Oct 21, 2026598-2
Oct 16, 2026600+4
Oct 15, 2026596-9
Oct 14, 20266050
Oct 13, 2026605+3
Oct 09, 2026602-6
Oct 08, 20266080
Oct 07, 2026608+47
Oct 06, 2026561+32
Oct 05, 20265290
Oct 02, 2026529No prior observation