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Contract OI history

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Dec 18, 2026 EXPIRATION

BHVN $11.00 Put

BHVN261218P00011000

Latest saved OI354Oct 23, 2026
Last change+2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BHVN $11.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3541770 2026-10-02: 80 OI2026-10-05: 80 OI2026-10-06: 80 OI2026-10-07: 80 OI2026-10-08: 80 OI2026-10-09: 80 OI2026-10-13: 80 OI2026-10-14: 80 OI2026-10-16: 80 OI2026-10-20: 352 OI2026-10-23: 354 OI Oct 02, 2026Oct 23, 2026

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

BHVN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing354+2
Oct 20, 2026352+272
Oct 16, 2026800
Oct 14, 2026800
Oct 13, 2026800
Oct 09, 2026800
Oct 08, 2026800
Oct 07, 2026800
Oct 06, 2026800
Oct 05, 2026800
Oct 02, 202680No prior observation