Sterling Infrastructure looks like a bubble name carried along by the AI boom, at 17x book for a concrete company after a recent skyrocket. It has had three CFOs since 2024, the first lasting under nine months, and the current CFO stayed at his prior company, Orbital Infrastructure, through its 2023 bankruptcy. It lacks institutional ownership despite going from micro cap to multibillion valuation. It may be nothing, but it is not one to back. x.com 

Sterling Infrastructure's year-over-year backlog growth and CEC outlook strengthen its AI-campus case. At 18.5x forward adjusted EPS before earnings, the risk/reward looked attractive after management flagged softer Q3 awards and a possible sequential backlog decline. Results beat expectations: signed backlog reached $4.14B (+61% YoY), combined backlog $6.14B (+78%), and 2026 adjusted EPS guidance rose to $21.70-$21.96. CEC revenue could top $1B in 2026, with improving margins. x.com  x.com 

Sterling Infrastructure is the best-of-breed data center builder and contractor, with EMCOR a close second. Investor's Business Daily named it Stock of the Day; the stock gapped up powerfully on earnings and is retesting its top, a great place to buy. x.com 

Sterling Infrastructure's larger, more complex campus jobs should bring pricing power and repeat customers. Its operating, free-cash-flow and EBITDA margins are 18%, 14% and 21%, versus IES Holdings' 12%, 6% and 14%; Sterling also has net cash and buybacks. IES is better value, but Sterling is the preferred business for site development and inside electrical work on AI data-center and semiconductor campuses, while IES's larger residential mix dilutes its data-center margins. x.com  x.com