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Contract OI history

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Jan 21, 2028 EXPIRATION

BBIO $55.00 Call

BBIO280121C00055000

Latest saved OI53Oct 23, 2026
Last change-4vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BBIO $55.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 57280 2026-10-08: 35 OI2026-10-09: 35 OI2026-10-13: 57 OI2026-10-14: 57 OI2026-10-16: 57 OI2026-10-21: 57 OI2026-10-23: 53 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, 2026Viewing53-4
Oct 21, 2026570
Oct 16, 2026570
Oct 14, 2026570
Oct 13, 202657+22
Oct 09, 2026350
Oct 08, 202635No prior observation