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Contract OI history

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Jan 15, 2027 EXPIRATION

BBIO $27.50 Put

BBIO270115P00027500

Latest saved OI145Oct 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 $27.50 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. 145720 2026-10-08: 145 OI2026-10-09: 145 OI2026-10-13: 145 OI2026-10-14: 145 OI2026-10-16: 145 OI2026-10-21: 145 OI2026-10-23: 145 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, 2026Viewing1450
Oct 21, 20261450
Oct 16, 20261450
Oct 14, 20261450
Oct 13, 20261450
Oct 09, 20261450
Oct 08, 2026145No prior observation