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Contract OI history

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Dec 18, 2026 EXPIRATION

BHVN $7.50 Put

BHVN261218P00007500

Latest saved OI651Oct 23, 2026
Last change+24vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BHVN $7.50 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. 6513250 2026-10-02: 626 OI2026-10-05: 626 OI2026-10-06: 626 OI2026-10-07: 626 OI2026-10-08: 626 OI2026-10-09: 626 OI2026-10-13: 627 OI2026-10-14: 627 OI2026-10-16: 627 OI2026-10-20: 627 OI2026-10-23: 651 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, 2026Viewing651+24
Oct 20, 20266270
Oct 16, 20266270
Oct 14, 20266270
Oct 13, 2026627+1
Oct 09, 20266260
Oct 08, 20266260
Oct 07, 20266260
Oct 06, 20266260
Oct 05, 20266260
Oct 02, 2026626No prior observation