MasTec's stock surged 6.61% in pre-market trading, continuing its positive momentum from the previous session. The infrastructure company's shares experienced a sharp upward movement following the release of its quarterly financial results.

The rally was driven by MasTec's first-quarter 2026 results, which substantially exceeded analyst expectations. The company reported adjusted earnings per share of $1.39, beating the consensus estimate of $0.99 and representing significant year-over-year growth. Revenue climbed to $3.83 billion, also surpassing expectations, with strong performance in the Pipeline Infrastructure and Clean Energy and Infrastructure segments.

Furthermore, MasTec raised its full-year 2026 financial guidance, increasing its revenue forecast and adjusted diluted EPS outlook. The company's growing backlog, particularly in Clean Energy and Infrastructure, along with improved operational efficiencies, provided additional confidence to investors, supporting the positive pre-market movement.