Quanta Services is trading 10.4% up at $619.49 in pre-market, driven by stronger-than-expected Q2 2026 financial results. - The company reported record Q2 revenues of $9.56 billion and adjusted diluted EPS of $4.24, significantly surpassing expectations. - Management also significantly increased its 2026 financial expectations across all metrics, reflecting strong momentum and improved visibility. - The surge follows a roughly 5% drop on July 29, 2026, as investors previously pulled back from industrial and infrastructure names.