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Contract OI history

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Dec 18, 2026 EXPIRATION

BHVN $20.00 Call

BHVN261218C00020000

Latest saved OI2,173Oct 23, 2026
Last change+82vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BHVN $20.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,1731,0860 2026-10-02: 2,074 OI2026-10-05: 2,074 OI2026-10-06: 2,074 OI2026-10-07: 2,074 OI2026-10-08: 2,074 OI2026-10-09: 2,073 OI2026-10-13: 2,083 OI2026-10-14: 2,083 OI2026-10-16: 2,083 OI2026-10-20: 2,091 OI2026-10-23: 2,173 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, 2026Viewing2,173+82
Oct 20, 20262,091+8
Oct 16, 20262,0830
Oct 14, 20262,0830
Oct 13, 20262,083+10
Oct 09, 20262,073-1
Oct 08, 20262,0740
Oct 07, 20262,0740
Oct 06, 20262,0740
Oct 05, 20262,0740
Oct 02, 20262,074No prior observation