OITracker Cboe delayed data

Contract OI history

Back to ONON

Dec 18, 2026 EXPIRATION

ONON $25.00 Put

ONON261218P00025000

Latest saved OI3,831Oct 23, 2026
Last change-6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ONON $25.00 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. 4,4852,2420 2026-10-02: 4,485 OI2026-10-05: 4,474 OI2026-10-06: 4,116 OI2026-10-07: 4,092 OI2026-10-08: 4,092 OI2026-10-09: 4,088 OI2026-10-13: 3,855 OI2026-10-14: 3,855 OI2026-10-15: 3,855 OI2026-10-16: 3,855 OI2026-10-21: 3,837 OI2026-10-23: 3,831 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, 2026Viewing3,831-6
Oct 21, 20263,837-18
Oct 16, 20263,8550
Oct 15, 20263,8550
Oct 14, 20263,8550
Oct 13, 20263,855-233
Oct 09, 20264,088-4
Oct 08, 20264,0920
Oct 07, 20264,092-24
Oct 06, 20264,116-358
Oct 05, 20264,474-11
Oct 02, 20264,485No prior observation