New York, January 8, 2026, 14:55 ET — Regular session
MasTec, Inc. (MTZ) shares fell about 8.9% to $214.86 in afternoon trading on Thursday, after opening near $236 and sliding to an intraday low of $213.98. The stock was last down $20.89 on the day.
The move underscores how quickly sentiment can flip in U.S. infrastructure contractors, where investors have been leaning into multi-year work tied to power grids, pipelines and network upgrades. When the trade gets crowded, small shifts in risk appetite can turn into a big tape move.
MasTec’s drop came alongside a broader selloff in the group. Quanta Services fell about 6%, Dycom Industries slid 5% and EMCOR Group dropped about 4%, even as the S&P 500 proxy SPY was down about 0.1% and the Nasdaq-heavy QQQ was off about 0.8%.
The slide also followed a fresh bullish call a day earlier. KeyBanc analyst Sangita Jain raised her price target on MasTec to $264 from $246 and kept an “Overweight” rating, meaning she expects the stock to outperform over time. She wrote she expects “meaningful margin expansion in 2026” as Communications and Pipeline revenue growth “take center stage.”
MasTec builds and maintains communications networks, power transmission and distribution lines, renewable energy facilities and oil and natural gas pipelines, among other projects.
In its most recent quarterly update, MasTec reported record third-quarter revenue of about $4.0 billion and said its 18‑month backlog — work under contract not yet done — rose to $16.8 billion as of Sept. 30, 2025. It also lifted its 2025 profit guidance and flagged permitting-related impacts on its Greenlink project within Power Delivery. 1
Still, the business can swing hard quarter to quarter. Permitting delays, weather, and shifts in customer spending on wireless, fiber or pipeline work can squeeze margins and cash flow, even when backlog looks solid.
