OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

RILY $4.00 Put

RILY261120P00004000

Latest saved OI34Oct 23, 2026
Last change+30vs previous saved observation
Saved market days2Oct 20, 2026 onwards
Daily open interest Hover a point for its date and OI
RILY $4.00 put open interest history 2 saved observations from 2026-10-20 to 2026-10-23. Exact values and changes are listed in the table below. 34170 2026-10-20: 4 OI2026-10-23: 34 OI Oct 20, 2026Oct 23, 2026

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

RILY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing34+30
Oct 20, 20264No prior observation