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Contract OI history

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Mar 19, 2027 EXPIRATION

ZETA $25.00 Put

ZETA270319P00025000

Latest saved OI239Oct 23, 2026
Last change+26vs 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. 2391190 2026-10-02: 198 OI2026-10-05: 199 OI2026-10-06: 204 OI2026-10-07: 205 OI2026-10-08: 205 OI2026-10-09: 217 OI2026-10-13: 215 OI2026-10-14: 215 OI2026-10-15: 214 OI2026-10-16: 214 OI2026-10-21: 213 OI2026-10-23: 239 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, 2026239+26
Oct 21, 2026Viewing213-1
Oct 16, 20262140
Oct 15, 2026214-1
Oct 14, 20262150
Oct 13, 2026215-2
Oct 09, 2026217+12
Oct 08, 20262050
Oct 07, 2026205+1
Oct 06, 2026204+5
Oct 05, 2026199+1
Oct 02, 2026198No prior observation