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Contract OI history

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Dec 18, 2026 EXPIRATION

ZETA $40.00 Put

ZETA261218P00040000

Latest saved OI343Oct 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 $40.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3431710 2026-10-02: 334 OI2026-10-05: 334 OI2026-10-06: 334 OI2026-10-07: 334 OI2026-10-08: 334 OI2026-10-09: 334 OI2026-10-13: 334 OI2026-10-14: 334 OI2026-10-15: 334 OI2026-10-16: 334 OI2026-10-21: 343 OI2026-10-23: 343 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, 20263430
Oct 21, 2026Viewing343+9
Oct 16, 20263340
Oct 15, 20263340
Oct 14, 20263340
Oct 13, 20263340
Oct 09, 20263340
Oct 08, 20263340
Oct 07, 20263340
Oct 06, 20263340
Oct 05, 20263340
Oct 02, 2026334No prior observation