OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

ONON $34.50 Put

ONON261030P00034500

Latest saved OI71Oct 23, 2026
Last change+70vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
ONON $34.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 71350 2026-10-21: 1 OI2026-10-23: 71 OI Oct 21, 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, 2026Viewing71+70
Oct 21, 20261No prior observation