MasTec Inc vs Sunrun Inc — how do they compare? MasTec Inc trades at $240.92 (market cap $19.77B), while Sunrun Inc trades at $8.84 (market cap $2.22B). The key difference: MasTec Inc is far larger — about 8.9× Sunrun Inc's market cap, and MasTec Inc is trading nearer its 52-week high, Sunrun Inc nearer its low. Which is the better fit depends on your goals.
| MTZ | RUN | |
|---|---|---|
Market Cap | $19.77B | $2.22B |
Sector | Technology | Technology |
52-Week High | $437.51 | $21.41 |
52-Week Low | $189.18 | $8.37 |
Enterprise Value | $22.69B | $16.74B |
Signals from Pluang's Aura AI — not financial advice
MasTec (MTZ) trades at $246.18, up 3.79% today, with strong analyst support (88.9% buy ratings) and a consensus price target of $436.50. The stock shows bearish technical signals but benefits from record $21.4B backlog and AI infrastructure exposure. Recent Q2 2026 earnings missed expectations slightly, though revenue grew 23% year-over-year. The company raised its 2026 outlook, highlighting expanding data center capabilities and power delivery growth.
MTZ presents a growth opportunity driven by infrastructure demand and AI-linked projects, but faces risks from premium valuation (P/E 39.2), weak cash flow trends, and communications segment softness. Investors should weigh strong institutional interest against execution challenges in a competitive market.
Sunrun (RUN) trades at $9.22, up 3.71% today, but faces a bearish technical trend with resistance at $10. The company shows mixed fundamentals: it beat Q2 2026 EPS estimates ($0.42 actual vs. $0.23 expected) but cut full-year guidance, contributing to a 46% stock decline. Revenue is projected to grow to $3.5B in 2026, yet net income margin may drop to 11.59%. Recent news highlights a partnership with Voltus for AI hyperscaler energy capacity, offering a potential growth catalyst amid operational challenges.
The outlook is cautious; RUN appears undervalued with a P/E of 6.27 and P/B of 0.64, but risks include weak cash flow from operations (-$421M in 2025) and high debt. Analyst consensus is bullish (62% buy ratings) with a $14.70 price target, implying 59% upside, though execution on subscriber growth and margin recovery is critical for realizing gains.
Trailing returns across standard periods
MasTec, Inc. is a leading infrastructure construction company operating mainly in North America. The company's services cover a diverse range of end-markets, including communications (building fiber and wireless infrastructure), oil & gas, electric power (transmission, distribution, and clean energy), and industrial projects. MTZ provides critical engineering, procurement, and construction (EPC) services that support the expansion and maintenance of essential infrastructure across the continent.
Read more on MTZ →Sunrun Inc. is one of the largest residential solar, battery storage, and energy services companies in the United States. The company provides solar panel installations, battery backup systems, and energy management solutions to homeowners. Sunrun primarily uses a solar-as-a-service model, offering customers solar leases and power purchase agreements (PPAs), which allow homeowners to adopt solar energy with little to no upfront cost. The company's mission is to create a planet run by the sun.
Read more on RUN →