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Contract OI history

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Nov 20, 2026 EXPIRATION

RARE $17.50 Call

RARE261120C00017500

Latest saved OI3,571Oct 23, 2026
Last change+72vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
RARE $17.50 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. 3,5711,7850 2026-10-08: 3,562 OI2026-10-09: 3,439 OI2026-10-12: 3,439 OI2026-10-14: 3,433 OI2026-10-16: 3,431 OI2026-10-20: 3,499 OI2026-10-23: 3,571 OI Oct 08, 2026Oct 23, 2026

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

RARE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,571+72
Oct 20, 20263,499+68
Oct 16, 20263,431-2
Oct 14, 20263,433-6
Oct 12, 20263,4390
Oct 09, 20263,439-123
Oct 08, 20263,562No prior observation