As previously reported, SunTrust analyst Rohit Seth downgraded U.S. Concrete to Hold from Buy and lowered his price target to $40 from $47. The analyst notes that the company's business is "best in class" and valuation still "compelling", but sees growing headwinds that include lower margin new bookings on sales mix shift geographically and by end-market toward infrastructure. Seth adds that U.S. Concrete stock may suffer from the overhang that is "fueled by late cycle concerns" and which won't clear until the core markets re-emerge from their downturn.