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Contract OI history

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Oct 23, 2026 EXPIRATION

BIIB $230.00 Call

BIIB261023C00230000

Latest saved OI410Oct 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. 4342170 2026-10-09: 433 OI2026-10-13: 434 OI2026-10-14: 429 OI2026-10-15: 434 OI2026-10-16: 413 OI2026-10-21: 411 OI2026-10-23: 410 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, 2026Viewing410-1
Oct 21, 2026411-2
Oct 16, 2026413-21
Oct 15, 2026434+5
Oct 14, 2026429-5
Oct 13, 2026434+1
Oct 09, 2026433No prior observation