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Contract OI history

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Nov 20, 2026 EXPIRATION

BIOA $5.00 Put

BIOA261120P00005000

Latest saved OI150Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BIOA $5.00 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. 150750 2026-10-08: 59 OI2026-10-09: 59 OI2026-10-13: 59 OI2026-10-14: 70 OI2026-10-16: 95 OI2026-10-20: 149 OI2026-10-23: 150 OI Oct 08, 2026Oct 23, 2026

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

BIOA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing150+1
Oct 20, 2026149+54
Oct 16, 202695+25
Oct 14, 202670+11
Oct 13, 2026590
Oct 09, 2026590
Oct 08, 202659No prior observation