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Contract OI history

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Jan 21, 2028 EXPIRATION

ZETA $2.50 Call

ZETA280121C00002500

Latest saved OI33Oct 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 $2.50 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. 35170 2026-10-02: 35 OI2026-10-05: 35 OI2026-10-06: 35 OI2026-10-07: 35 OI2026-10-08: 35 OI2026-10-09: 35 OI2026-10-13: 35 OI2026-10-14: 35 OI2026-10-15: 35 OI2026-10-16: 35 OI2026-10-21: 33 OI2026-10-23: 33 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, 2026330
Oct 21, 2026Viewing33-2
Oct 16, 2026350
Oct 15, 2026350
Oct 14, 2026350
Oct 13, 2026350
Oct 09, 2026350
Oct 08, 2026350
Oct 07, 2026350
Oct 06, 2026350
Oct 05, 2026350
Oct 02, 202635No prior observation