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Contract OI history

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Mar 19, 2027 EXPIRATION

BIIB $220.00 Call

BIIB270319C00220000

Latest saved OI660Oct 23, 2026
Last change-11vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BIIB $220.00 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. 6713350 2026-10-09: 152 OI2026-10-13: 668 OI2026-10-14: 669 OI2026-10-15: 669 OI2026-10-16: 670 OI2026-10-21: 671 OI2026-10-23: 660 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, 2026Viewing660-11
Oct 21, 2026671+1
Oct 16, 2026670+1
Oct 15, 20266690
Oct 14, 2026669+1
Oct 13, 2026668+516
Oct 09, 2026152No prior observation