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Contract OI history

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Dec 18, 2026 EXPIRATION

ZETA $17.50 Call

ZETA261218C00017500

Latest saved OI678Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZETA $17.50 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. 7033510 2026-10-02: 686 OI2026-10-05: 703 OI2026-10-06: 703 OI2026-10-07: 683 OI2026-10-08: 683 OI2026-10-09: 680 OI2026-10-13: 680 OI2026-10-14: 680 OI2026-10-15: 680 OI2026-10-16: 678 OI2026-10-21: 678 OI2026-10-23: 678 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, 20266780
Oct 21, 2026Viewing6780
Oct 16, 2026678-2
Oct 15, 20266800
Oct 14, 20266800
Oct 13, 20266800
Oct 09, 2026680-3
Oct 08, 20266830
Oct 07, 2026683-20
Oct 06, 20267030
Oct 05, 2026703+17
Oct 02, 2026686No prior observation