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Contract OI history

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Jan 15, 2027 EXPIRATION

ONON $37.50 Put

ONON270115P00037500

Latest saved OI2,167Oct 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
ONON $37.50 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. 2,4131,2060 2026-10-02: 2,413 OI2026-10-05: 1,913 OI2026-10-06: 1,913 OI2026-10-07: 1,913 OI2026-10-08: 1,913 OI2026-10-09: 2,141 OI2026-10-13: 2,143 OI2026-10-14: 2,143 OI2026-10-15: 2,143 OI2026-10-16: 2,143 OI2026-10-21: 2,165 OI2026-10-23: 2,167 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ONON contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,167+2
Oct 21, 20262,165+22
Oct 16, 20262,1430
Oct 15, 20262,1430
Oct 14, 20262,1430
Oct 13, 20262,143+2
Oct 09, 20262,141+228
Oct 08, 20261,9130
Oct 07, 20261,9130
Oct 06, 20261,9130
Oct 05, 20261,913-500
Oct 02, 20262,413No prior observation