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Contract OI history

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Jan 15, 2027 EXPIRATION

ZETA $35.00 Put

ZETA270115P00035000

Latest saved OI213Oct 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 $35.00 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. 2131060 2026-10-02: 195 OI2026-10-05: 198 OI2026-10-06: 199 OI2026-10-07: 199 OI2026-10-08: 199 OI2026-10-09: 204 OI2026-10-13: 209 OI2026-10-14: 209 OI2026-10-15: 211 OI2026-10-16: 211 OI2026-10-21: 211 OI2026-10-23: 213 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, 2026213+2
Oct 21, 2026Viewing2110
Oct 16, 20262110
Oct 15, 2026211+2
Oct 14, 20262090
Oct 13, 2026209+5
Oct 09, 2026204+5
Oct 08, 20261990
Oct 07, 20261990
Oct 06, 2026199+1
Oct 05, 2026198+3
Oct 02, 2026195No prior observation