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Contract OI history

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Dec 18, 2026 EXPIRATION

RARE $12.50 Put

RARE261218P00012500

Latest saved OI1,356Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
RARE $12.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 1,3576780 2026-10-08: 1,345 OI2026-10-09: 1,345 OI2026-10-12: 1,357 OI2026-10-14: 1,357 OI2026-10-16: 1,357 OI2026-10-20: 1,357 OI2026-10-23: 1,356 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, 2026Viewing1,356-1
Oct 20, 20261,3570
Oct 16, 20261,3570
Oct 14, 20261,3570
Oct 12, 20261,357+12
Oct 09, 20261,3450
Oct 08, 20261,345No prior observation