AMPH Short Interest

Short InterestVery High
Short Interest?4.3M
Days to Cover?11.3
Avg Daily Volume375.6K
Settlement Date2026-10-30
Short Volume Ratio (30 Day)Avg: 6,446.6%
2026-10-052026-10-262026-11-13
Latest Short Vol Ratio6,506.0%
Short Volume103.7K
Total Volume159.5K
MarketsMoversWatchlist
Amphastar Pharmaceuticals (AMPH) — Short Interest