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Contract OI history

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Nov 20, 2026 EXPIRATION

BHVN $20.00 Call

BHVN261120C00020000

Latest saved OI407Oct 23, 2026
Last change+264vs 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. 4072030 2026-10-02: 11 OI2026-10-05: 11 OI2026-10-06: 11 OI2026-10-07: 41 OI2026-10-08: 41 OI2026-10-09: 41 OI2026-10-13: 41 OI2026-10-14: 41 OI2026-10-16: 41 OI2026-10-20: 143 OI2026-10-23: 407 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, 2026Viewing407+264
Oct 20, 2026143+102
Oct 16, 2026410
Oct 14, 2026410
Oct 13, 2026410
Oct 09, 2026410
Oct 08, 2026410
Oct 07, 202641+30
Oct 06, 2026110
Oct 05, 2026110
Oct 02, 202611No prior observation