MasTec shares dropped 18.9% following the quarter as investors reacted negatively to cautious near-term outlook in the Communications segment, driven by expected revenue pressures from wireless slowdown and deferred wireline projects despite solid overall growth.
MasTec shares rose 8.0% following a first quarter that largely beat expectations across revenues, profitability, and backlog, supported by strong execution and expanding opportunities in AI-driven data centers, grid modernization, and energy infrastructure.