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Contract OI history

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Jan 21, 2028 EXPIRATION

ZETA $25.00 Put

ZETA280121P00025000

Latest saved OI3,293Oct 23, 2026
Last change+60vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZETA $25.00 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. 3,3021,6510 2026-10-02: 3,278 OI2026-10-05: 3,274 OI2026-10-06: 3,301 OI2026-10-07: 3,302 OI2026-10-08: 3,302 OI2026-10-09: 3,301 OI2026-10-13: 3,295 OI2026-10-14: 3,295 OI2026-10-15: 3,295 OI2026-10-16: 3,295 OI2026-10-21: 3,233 OI2026-10-23: 3,293 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, 20263,293+60
Oct 21, 2026Viewing3,233-62
Oct 16, 20263,2950
Oct 15, 20263,2950
Oct 14, 20263,2950
Oct 13, 20263,295-6
Oct 09, 20263,301-1
Oct 08, 20263,3020
Oct 07, 20263,302+1
Oct 06, 20263,301+27
Oct 05, 20263,274-4
Oct 02, 20263,278No prior observation