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Contract OI history

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Jan 15, 2027 EXPIRATION

BBIO $55.00 Put

BBIO270115P00055000

Latest saved OI341Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BBIO $55.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 3411700 2026-10-08: 340 OI2026-10-09: 340 OI2026-10-13: 341 OI2026-10-14: 341 OI2026-10-16: 341 OI2026-10-21: 341 OI2026-10-23: 341 OI Oct 08, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BBIO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3410
Oct 21, 20263410
Oct 16, 20263410
Oct 14, 20263410
Oct 13, 2026341+1
Oct 09, 20263400
Oct 08, 2026340No prior observation