Why Is Military Shipbuilding Company Huntington Ingalls Stock Gaining Today?

HII Inc. (NYSE: HII) shares climb after delivering the first Lionfish uncrewed undersea vehicles to the U.S. Navy. The $347M contract could scale to 200 units. Built on the REMUS 300 platform, Lionfish supports key missions like surveillance, mine detection, and submarine tracking—marking the Navy's first prototype-to-production transition under its innovation strategy.