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Contract OI history

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Jan 15, 2027 EXPIRATION

ZETA $20.00 Put

ZETA270115P00020000

Latest saved OI1,241Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZETA $20.00 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. 1,3486740 2026-10-02: 1,348 OI2026-10-05: 1,348 OI2026-10-06: 1,329 OI2026-10-07: 1,332 OI2026-10-08: 1,332 OI2026-10-09: 1,302 OI2026-10-13: 1,303 OI2026-10-14: 1,303 OI2026-10-15: 1,297 OI2026-10-16: 1,290 OI2026-10-21: 1,243 OI2026-10-23: 1,241 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, 20261,241-2
Oct 21, 2026Viewing1,243-47
Oct 16, 20261,290-7
Oct 15, 20261,297-6
Oct 14, 20261,3030
Oct 13, 20261,303+1
Oct 09, 20261,302-30
Oct 08, 20261,3320
Oct 07, 20261,332+3
Oct 06, 20261,329-19
Oct 05, 20261,3480
Oct 02, 20261,348No prior observation