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Contract OI history

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Jan 19, 2029 EXPIRATION

ZETA $17.50 Call

ZETA290119C00017500

Latest saved OI17Oct 23, 2026
Last change+10vs 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. 1780 2026-10-02: 5 OI2026-10-05: 5 OI2026-10-06: 6 OI2026-10-07: 6 OI2026-10-08: 6 OI2026-10-09: 6 OI2026-10-13: 6 OI2026-10-14: 6 OI2026-10-15: 6 OI2026-10-16: 6 OI2026-10-21: 7 OI2026-10-23: 17 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, 202617+10
Oct 21, 2026Viewing7+1
Oct 16, 202660
Oct 15, 202660
Oct 14, 202660
Oct 13, 202660
Oct 09, 202660
Oct 08, 202660
Oct 07, 202660
Oct 06, 20266+1
Oct 05, 202650
Oct 02, 20265No prior observation