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Contract OI history

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Dec 18, 2026 EXPIRATION

BIOA $10.00 Put

BIOA261218P00010000

Latest saved OI340Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BIOA $10.00 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: 341 OI2026-10-09: 341 OI2026-10-13: 341 OI2026-10-14: 340 OI2026-10-16: 340 OI2026-10-20: 340 OI2026-10-23: 340 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, 2026Viewing3400
Oct 20, 20263400
Oct 16, 20263400
Oct 14, 2026340-1
Oct 13, 20263410
Oct 09, 20263410
Oct 08, 2026341No prior observation