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Contract OI history

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Jan 15, 2027 EXPIRATION

BIIB $175.00 Put

BIIB270115P00175000

Latest saved OI109Oct 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 $175.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 109540 2026-10-09: 109 OI2026-10-13: 109 OI2026-10-14: 109 OI2026-10-15: 109 OI2026-10-16: 109 OI2026-10-21: 109 OI2026-10-23: 109 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, 2026Viewing1090
Oct 21, 20261090
Oct 16, 20261090
Oct 15, 20261090
Oct 14, 20261090
Oct 13, 20261090
Oct 09, 2026109No prior observation