BIIB Short Interest

Short InterestHigh
Short Interest?5.8M
Days to Cover?7.6
Avg Daily Volume766.5K
Settlement Date2026-09-15
Short Volume Ratio (30 Day)Avg: 6,160.2%
2026-08-202026-09-112026-10-01
Latest Short Vol Ratio5,086.0%
Short Volume380.1K
Total Volume747.4K
MarketsMoversWatchlist
Biogen (BIIB) — Short Interest