OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

ZETA $40.00 Call

ZETA270115C00040000

Latest saved OI4,466Oct 23, 2026
Last change+27vs 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. 4,5042,2520 2026-10-02: 4,398 OI2026-10-05: 4,396 OI2026-10-06: 4,486 OI2026-10-07: 4,504 OI2026-10-08: 4,504 OI2026-10-09: 4,484 OI2026-10-13: 4,478 OI2026-10-14: 4,478 OI2026-10-15: 4,495 OI2026-10-16: 4,503 OI2026-10-21: 4,439 OI2026-10-23: 4,466 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, 20264,466+27
Oct 21, 2026Viewing4,439-64
Oct 16, 20264,503+8
Oct 15, 20264,495+17
Oct 14, 20264,4780
Oct 13, 20264,478-6
Oct 09, 20264,484-20
Oct 08, 20264,5040
Oct 07, 20264,504+18
Oct 06, 20264,486+90
Oct 05, 20264,396-2
Oct 02, 20264,398No prior observation