Fidelity Investments, an investment management company, recently released its first-quarter 2026 investor letter for “Fidelity Growth Strategies Fund”. A copy of the letter is available to download here. The Fidelity Growth Strategy is a diversified equity strategy aimed at domestic midcap growth stocks. The approach focuses on identifying quality companies that deliver steady above-average growth and can outperform over time. The Fund (Retail Class shares) returned -3.21% in the quarter, outperforming the benchmark Russell Midcap® Growth Index’s -6.35% return. The outperformance was primarily due to industry and stock selection, particularly in the industrials sector. The US stock market started 2026 positively, but declined in late February amid concerns over the viability of artificial intelligence investments and Middle Eastern conflicts. Investors shifted to defensive strategies, favoring stable, large-cap firms, leading to value equities outperforming growth. The fund continues to favor companies with strong competitive moats and growth potential. In addition, please check the Fund’s top five holdings to know its best picks in 2026.
In its first-quarter 2026 investor letter, Fidelity Growth Strategies Fund highlighted MasTec, Inc. (NYSE:MTZ). MasTec, Inc. (NYSE:MTZ) is an infrastructure engineering and construction company providing services for communications, energy, utility, and other infrastructure. On May 19, 2026, MasTec, Inc. (NYSE:MTZ) closed at $385.00 per share. One-month return of MasTec, Inc. (NYSE:MTZ) was 2.26%, and its shares gained 147.84% over the past 52 weeks. MasTec, Inc. (NYSE:MTZ) has a market capitalization of $30.42 billion.
Fidelity Growth Strategies Fund stated the following regarding MasTec, Inc. (NYSE:MTZ) in its Q1 2026 investor letter:
“The fund’s outperformance of the Russell benchmark this quarter was driven primarily by industry selection, with stock selection also providing a modest boost. Stock picks and a large overweight in the industrials sector helped the most by far.
Looking at individual equities, our investments in several capital goods firms within industrials – including a non-benchmark stake in Sterling Infrastructure (+33%) and overweights in MasTec, Inc. (NYSE:MTZ) (+48%) and Comfort Systems USA (+47%) – were among our top relative contributors. MasTec specializes in energy and power infrastructure.
What they all have in common is that each has seen their business skyrocket as a direct or indirect result of the huge investments now being made to build AI-capable data centers. We slightly trimmed the stake in each this quarter to manage the position size. and all three stocks were among our top-20 portfolio overweights.”
MasTec, Inc. (NYSE:MTZ) is not on our list of 40 Most Popular Stocks Among Hedge Funds Heading Into 2026. According to our database, 71 hedge fund portfolios held MasTec, Inc. (NYSE:MTZ) at the end of the fourth quarter, up from 67 in the previous quarter. While we acknowledge the risk and potential of MasTec, Inc. (NYSE:MTZ) as an investment, our conviction lies in the belief that some AI stocks hold greater promise for delivering higher returns and doing so within a shorter time frame. If you are looking for an AI stock that is more promising than MasTec, Inc. (NYSE:MTZ) and that has 10,000% upside potential, check out our report about this cheapest AI stock.
In another article, we covered MasTec, Inc. (NYSE:MTZ) and shared the list of best large cap stocks to buy in 2026 according to billionaire Dan Loeb. In addition, please check out our hedge fund investor letters Q1 2026 page for more investor letters from hedge funds and other leading investors.
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Disclosure: None. This article is originally published at Insider Monkey.
