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Contract OI history

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Dec 18, 2026 EXPIRATION

CELC $50.00 Put

CELC261218P00050000

Latest saved OI278Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CELC $50.00 put open interest history 6 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2781390 2026-10-08: 6 OI2026-10-13: 6 OI2026-10-14: 6 OI2026-10-16: 7 OI2026-10-20: 278 OI2026-10-23: 278 OI Oct 08, 2026Oct 23, 2026

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

CELC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2780
Oct 20, 2026278+271
Oct 16, 20267+1
Oct 14, 202660
Oct 13, 202660
Oct 08, 20266No prior observation