Huntington Ingalls (HII) shares soared 4.3% in the last trading session to close at $336.64. The move was backed by solid volume with far more shares changing hands than in a normal session. This compares to the stock's 6.9% gain over the past four weeks.On Dec. 19, 2025, HII announced that its Ingalls Shipbuilding unit was selected by the U.S. Navy to design and build the future small surface combatant ship. The ship will be based on the proven Legend-class national security cutter design developed by Inga ...