Sterling Construction shares fell 5.15% in after-hours trading on Monday, extending regular-session losses, as investors continued to lock in profits despite the company reporting better-than-expected second-quarter results and raising its full-year guidance.

The stock had already declined over 5% during the regular session, as a sharp pre-earnings rally—with gains of 12.33% on July 30 and 5.69% on July 31—prompted selling pressure. After the close, Sterling reported Q2 revenue of $1.168 billion, well above the consensus estimate of $989.8 million, and adjusted earnings per share of $5.80, beating the $4.62 estimate. The company also raised its full-year 2026 guidance for both revenue and adjusted EPS.

The post-market drop reflects a “sell-the-news” reaction, where even strong results were insufficient to sustain the elevated share price after a significant run-up. Broader weakness in the construction and engineering sector during the regular session, with peers like Comfort Systems USA and MasTec also declining, added to the negative sentiment.