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Contract OI history

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Oct 30, 2026 EXPIRATION

ZETA $25.00 Put

ZETA261030P00025000

Latest saved OI562Oct 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 $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. 5632810 2026-10-02: 370 OI2026-10-05: 366 OI2026-10-06: 359 OI2026-10-07: 359 OI2026-10-08: 359 OI2026-10-09: 498 OI2026-10-13: 498 OI2026-10-14: 498 OI2026-10-15: 498 OI2026-10-16: 498 OI2026-10-21: 563 OI2026-10-23: 562 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, 2026562-1
Oct 21, 2026Viewing563+65
Oct 16, 20264980
Oct 15, 20264980
Oct 14, 20264980
Oct 13, 20264980
Oct 09, 2026498+139
Oct 08, 20263590
Oct 07, 20263590
Oct 06, 2026359-7
Oct 05, 2026366-4
Oct 02, 2026370No prior observation