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Contract OI history

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Nov 20, 2026 EXPIRATION

RIOT $18.50 Call

RIOT261120C00018500

Latest saved OI661Oct 23, 2026
Last change+14vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
RIOT $18.50 call open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 6613300 2026-10-21: 647 OI2026-10-23: 661 OI Oct 21, 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, 2026Viewing661+14
Oct 21, 2026647No prior observation