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Contract OI history

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Feb 19, 2027 EXPIRATION

RARE $17.50 Call

RARE270219C00017500

Latest saved OI1,690Oct 23, 2026
Last change+96vs 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. 1,6908450 2026-10-08: 1,153 OI2026-10-09: 1,307 OI2026-10-12: 1,482 OI2026-10-14: 1,486 OI2026-10-16: 1,486 OI2026-10-20: 1,594 OI2026-10-23: 1,690 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, 2026Viewing1,690+96
Oct 20, 20261,594+108
Oct 16, 20261,4860
Oct 14, 20261,486+4
Oct 12, 20261,482+175
Oct 09, 20261,307+154
Oct 08, 20261,153No prior observation