OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

RILY $5.50 Call

RILY261030C00005500

Latest saved OI197Oct 23, 2026
Last change+4vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
RILY $5.50 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 197980 2026-10-08: 47 OI2026-10-09: 47 OI2026-10-13: 71 OI2026-10-14: 74 OI2026-10-16: 169 OI2026-10-20: 193 OI2026-10-23: 197 OI Oct 08, 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, 2026Viewing197+4
Oct 20, 2026193+24
Oct 16, 2026169+95
Oct 14, 202674+3
Oct 13, 202671+24
Oct 09, 2026470
Oct 08, 202647No prior observation