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Contract OI history

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Jan 21, 2028 EXPIRATION

ZETA $17.50 Call

ZETA280121C00017500

Latest saved OI1,070Oct 23, 2026
Last change-1vs 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. 1,0965480 2026-10-02: 1,096 OI2026-10-05: 1,062 OI2026-10-06: 1,061 OI2026-10-07: 1,061 OI2026-10-08: 1,061 OI2026-10-09: 1,074 OI2026-10-13: 1,067 OI2026-10-14: 1,067 OI2026-10-15: 1,067 OI2026-10-16: 1,066 OI2026-10-21: 1,071 OI2026-10-23: 1,070 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, 20261,070-1
Oct 21, 2026Viewing1,071+5
Oct 16, 20261,066-1
Oct 15, 20261,0670
Oct 14, 20261,0670
Oct 13, 20261,067-7
Oct 09, 20261,074+13
Oct 08, 20261,0610
Oct 07, 20261,0610
Oct 06, 20261,061-1
Oct 05, 20261,062-34
Oct 02, 20261,096No prior observation