Sterling Infrastructure earns a 'Buy' rating, driven by robust margin expansion, backlog growth, and secular data center tailwinds. STRL's E-infrastructure segment leverages the AI and data center buildout, creating a pricing moat and supporting sustained revenue and margin growth. Q1 2026 results exceeded expectations: revenue rose 92% YoY to $825.7M, net income up 143% to $96M, and backlog reached $3.8B.