OITracker Cboe delayed data

Contract OI history

Back to ONON

Jan 15, 2027 EXPIRATION

ONON $27.50 Put

ONON270115P00027500

Latest saved OI8,632Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ONON $27.50 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. 13,5896,7940 2026-10-02: 13,522 OI2026-10-05: 13,536 OI2026-10-06: 13,589 OI2026-10-07: 8,589 OI2026-10-08: 8,589 OI2026-10-09: 8,696 OI2026-10-13: 8,676 OI2026-10-14: 8,676 OI2026-10-15: 8,676 OI2026-10-16: 8,636 OI2026-10-21: 8,633 OI2026-10-23: 8,632 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, 2026Viewing8,632-1
Oct 21, 20268,633-3
Oct 16, 20268,636-40
Oct 15, 20268,6760
Oct 14, 20268,6760
Oct 13, 20268,676-20
Oct 09, 20268,696+107
Oct 08, 20268,5890
Oct 07, 20268,589-5,000
Oct 06, 202613,589+53
Oct 05, 202613,536+14
Oct 02, 202613,522No prior observation