OITracker Cboe delayed data

Contract OI history

Back to RIOT

Oct 30, 2026 EXPIRATION

RIOT $18.50 Put

RIOT261030P00018500

Latest saved OI195Oct 23, 2026
Last change-55vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
RIOT $18.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3871930 2026-10-09: 0 OI2026-10-13: 270 OI2026-10-14: 270 OI2026-10-15: 369 OI2026-10-16: 387 OI2026-10-21: 250 OI2026-10-23: 195 OI Oct 09, 2026Oct 23, 2026

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

RIOT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing195-55
Oct 21, 2026250-137
Oct 16, 2026387+18
Oct 15, 2026369+99
Oct 14, 20262700
Oct 13, 2026270+270
Oct 09, 20260No prior observation