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Contract OI history

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Jan 21, 2028 EXPIRATION

ZETA $30.00 Put

ZETA280121P00030000

Latest saved OI907Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZETA $30.00 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. 9074530 2026-10-02: 827 OI2026-10-05: 827 OI2026-10-06: 839 OI2026-10-07: 839 OI2026-10-08: 839 OI2026-10-09: 840 OI2026-10-13: 842 OI2026-10-14: 842 OI2026-10-15: 841 OI2026-10-16: 841 OI2026-10-21: 907 OI2026-10-23: 907 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, 20269070
Oct 21, 2026Viewing907+66
Oct 16, 20268410
Oct 15, 2026841-1
Oct 14, 20268420
Oct 13, 2026842+2
Oct 09, 2026840+1
Oct 08, 20268390
Oct 07, 20268390
Oct 06, 2026839+12
Oct 05, 20268270
Oct 02, 2026827No prior observation