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Contract OI history

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Nov 20, 2026 EXPIRATION

BBIO $55.00 Put

BBIO261120P00055000

Latest saved OI307Oct 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. 3071530 2026-10-08: 131 OI2026-10-09: 131 OI2026-10-13: 131 OI2026-10-14: 131 OI2026-10-16: 131 OI2026-10-21: 307 OI2026-10-23: 307 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, 2026Viewing3070
Oct 21, 2026307+176
Oct 16, 20261310
Oct 14, 20261310
Oct 13, 20261310
Oct 09, 20261310
Oct 08, 2026131No prior observation