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Contract OI history

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Nov 20, 2026 EXPIRATION

CELC $50.00 Put

CELC261120P00050000

Latest saved OI344Oct 23, 2026
Last change+1vs 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. 3441720 2026-10-08: 1 OI2026-10-13: 1 OI2026-10-14: 3 OI2026-10-16: 153 OI2026-10-20: 343 OI2026-10-23: 344 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, 2026Viewing344+1
Oct 20, 2026343+190
Oct 16, 2026153+150
Oct 14, 20263+2
Oct 13, 202610
Oct 08, 20261No prior observation