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Contract OI history

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Dec 18, 2026 EXPIRATION

RARE $17.50 Call

RARE261218C00017500

Latest saved OI1,172Oct 23, 2026
Last change0vs 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. 1,1965980 2026-10-08: 1,196 OI2026-10-09: 1,196 OI2026-10-12: 1,196 OI2026-10-14: 1,176 OI2026-10-16: 1,176 OI2026-10-20: 1,172 OI2026-10-23: 1,172 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, 2026Viewing1,1720
Oct 20, 20261,172-4
Oct 16, 20261,1760
Oct 14, 20261,176-20
Oct 12, 20261,1960
Oct 09, 20261,1960
Oct 08, 20261,196No prior observation