SHLD is trading at $59.98, up 3.07%, amid a broad U.S. market rebound after last week’s selloff. - U.S. futures were higher, with Dow futures leading premarket gains. Lower oil prices and a rebound in AI-related shares also supported the risk-on tone. - Nvidia fell, and available news does not identify a specific defense-sector catalyst. - SHLD is concentrated in defense technology, with large positions in Palantir, RTX, Lockheed Martin, General Dynamics, and Northrop Grumman.