Alnylam Pharmaceuticals, Inc. vs MasTec Inc — how do they compare? Alnylam Pharmaceuticals, Inc. trades at $222.01 (market cap $29.60B), while MasTec Inc trades at $280.16 (market cap $21.90B). The key difference: Alnylam Pharmaceuticals, Inc. is the larger of the two by market cap, and MasTec Inc is trading nearer its 52-week high, Alnylam Pharmaceuticals, Inc. nearer its low. Which is the better fit depends on your goals.
| ALNY | MTZ | |
|---|---|---|
Market Cap | $29.60B | $21.90B |
Sector | Health | Technology |
52-Week High | $491.22 | $437.51 |
52-Week Low | $205.48 | $172.51 |
Enterprise Value | $27.56B | $24.81B |
Signals from Pluang's Aura AI — not financial advice
ALNY trades at $223.43, up 2.97% in 24 hours, with a bearish technical signal despite recent gains. The stock shows strong profitability with a 79.65% gross margin and 96.55% ROE, but valuation ratios like P/E of 38.54 are elevated. Recent Q2 2026 earnings missed estimates, and multiple law firms are investigating potential securities fraud, adding uncertainty.
Outlook is mixed: analyst consensus is bullish with a $370.07 price target, but risks include ongoing fraud probes and earnings volatility. Revenue growth is robust, projected to reach $4.8B in 2026, yet investors face headwinds from legal issues and technical bearishness.
MasTec (MTZ) trades at $281.11, up 4.78% over 24 hours, amid strong 2026 performance with record Q2 revenue of $4.37 billion and a $21.4 billion backlog. Technical indicators show a bearish trend with resistance near $283, while fundamentals reflect robust growth—40% EBITDA growth in Q2—though valuation multiples like a P/E of 43.42 suggest premium pricing. Recent news highlights the acquisition of The Superior Group and a $650 million senior notes offering, bolstering infrastructure capabilities.
The outlook is positive, driven by infrastructure demand and raised 2026 guidance, but risks include execution challenges from acquisitions and communications segment delays. Analysts are overwhelmingly bullish with an 88.89% buy rating and a $439.56 consensus target, implying significant upside from current levels.
Trailing returns across standard periods
Alnylam Pharmaceuticals is a leader in the study of RNA interference (RNAi) therapeutics. RNAi is a naturally occurring biological pathway within cells for sequence-specific silencing and regulation of gene expression. Alnylam has five drugs on the market: Onpattro and Amvuttra for hATTR amyloidosis, Givlaari for acute hepatic porphyria, Oxlumo for primary hyperoxaluria type 1, and Leqvio for hypercholesterolemia.
Read more on ALNY →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 →