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Contract OI history

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Jan 15, 2027 EXPIRATION

BIIB $230.00 Call

BIIB270115C00230000

Latest saved OI1,064Oct 23, 2026
Last change-4vs 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. 1,0705350 2026-10-09: 1,049 OI2026-10-13: 1,052 OI2026-10-14: 1,070 OI2026-10-15: 1,070 OI2026-10-16: 1,063 OI2026-10-21: 1,068 OI2026-10-23: 1,064 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, 2026Viewing1,064-4
Oct 21, 20261,068+5
Oct 16, 20261,063-7
Oct 15, 20261,0700
Oct 14, 20261,070+18
Oct 13, 20261,052+3
Oct 09, 20261,049No prior observation