Pre-market price movements and significant market activity for Huntington Ingalls Industries, Inc. ($HII). Each move is flagged by Z-score statistical significance — showing when $HII moved beyond its typical daily range. 3 significant moves detected in the last 30 days.
Current Market State
What May Be Driving HII?
HII secured a $5.1B Truman overhaul and a Navy order for 10 ROMULUS autonomous vessels.
Huntington Ingalls Industries, Inc. operates in the Industrials sector, specifically Ship & Boat Building & Repairing. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Sep 30, 2026 | Regular | $267.65 | +3.09% | 3.36 | 1.1× |
| Sep 30, 2026 | After-hours | $267.15 | +2.89% | 3.19 | 1.7× |
| Sep 28, 2026 | Regular | $257.60 | -2.43% | -2.01 | 0.6× |
About HII Premarket Movers
This page tracks unusual market activity for Huntington Ingalls Industries, Inc. (HII) across all trading sessions — pre-market (4:00 AM–9:30 AM ET), regular hours (9:30 AM–4:00 PM ET), and after-hours (4:00 PM–8:00 PM ET). A move is flagged as "unusual" when its Z-score reaches 2 or higher, meaning the price change is statistically significant relative to HII's recent daily volatility.
Z-score is calculated by comparing each move to the 20-day average return and standard deviation. A Z-score of 2.0 means the move is 2 standard deviations beyond the average — occurring in roughly the top 5% of daily moves. Relative volume (RVOL) compares current volume to the 20-day average volume at the same time of day, helping distinguish genuine institutional activity from noise.