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Contract OI history

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Oct 30, 2026 EXPIRATION

BIIB $230.00 Call

BIIB261030C00230000

Latest saved OI22Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BIIB $230.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 23110 2026-10-09: 23 OI2026-10-13: 22 OI2026-10-14: 22 OI2026-10-15: 20 OI2026-10-16: 20 OI2026-10-21: 21 OI2026-10-23: 22 OI Oct 09, 2026Oct 23, 2026

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

BIIB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing22+1
Oct 21, 202621+1
Oct 16, 2026200
Oct 15, 202620-2
Oct 14, 2026220
Oct 13, 202622-1
Oct 09, 202623No prior observation