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Contract OI history

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Mar 19, 2027 EXPIRATION

BIIB $310.00 Call

BIIB270319C00310000

Latest saved OI26Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BIIB $310.00 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. 26130 2026-10-09: 21 OI2026-10-13: 24 OI2026-10-14: 24 OI2026-10-15: 25 OI2026-10-16: 26 OI2026-10-21: 26 OI2026-10-23: 26 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, 2026Viewing260
Oct 21, 2026260
Oct 16, 202626+1
Oct 15, 202625+1
Oct 14, 2026240
Oct 13, 202624+3
Oct 09, 202621No prior observation