Brown Advisory, an investment management company, released its “Brown Advisory Mid-Cap Growth Strategy” fourth-quarter 2025 investor letter. A copy of the letter can be downloaded here. The Strategy lagged the Russell Midcap® Growth Index in the fourth quarter due to stock selection. The performance was in line with expectations for the full year. The firm believes that the Strategy underperformed in 2025 because it did not own Palantir Technologies Inc (PLTR). The Strategy focuses on achieving solid risk-adjusted returns by investing in high-quality compounders with fair valuations and market capitalizations between $2 billion and $50 billion at the time of purchase. Please review the Strategy’s top five holdings to gain insights into their key selections for 2025.
In its fourth-quarter 2025 investor letter, Brown Advisory Mid-Cap Growth Strategy highlighted Comfort Systems USA, Inc. (NYSE:FIX) as one of its leading contributors. Comfort Systems USA, Inc. (NYSE:FIX) is a leading mechanical and electrical installation, renovation, maintenance, repair, and replacement services provider to commercial, industrial, and institutional customers. On March 23, 2026, Comfort Systems USA, Inc. (NYSE:FIX) stock closed at $1,408.25 per share. One-month return of Comfort Systems USA, Inc. (NYSE:FIX) was -4.11%, and its shares gained 277.49% over the past 52 weeks. Comfort Systems USA, Inc. (NYSE:FIX) has a market capitalization of $49.54 billion.
Brown Advisory Mid-Cap Growth Strategy stated the following regarding Comfort Systems USA, Inc. (NYSE:FIX) in its fourth quarter 2025 investor letter:
“Comfort Systems USA, Inc. (NYSE:FIX): Provides commercial, industrial and institutional mechanical and electrical contract services. Comfort Systems (FIX) was a key beneficiary of AI-driven demand for data center construction and related MEP contracting. The company materially exceeded both market expectations and its own guidance, growing revenue more than 20% for the year, with strong backlog growth supporting continued above-historical growth going forward. Elevated demand is driving all-time high gross margins and profit growth.”
Comfort Systems USA, Inc. (NYSE:FIX) is not on our list of 40 Most Popular Stocks Among Hedge Funds Heading Into 2026. According to our database, 57 hedge fund portfolios held Comfort Systems USA, Inc. (NYSE:FIX) at the end of the fourth quarter, up from 56 in the previous quarter. While we acknowledge the risk and potential of Comfort Systems USA, Inc. (NYSE:FIX) 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 Comfort Systems USA, Inc. (NYSE:FIX) and that has 10,000% upside potential, check out our report about this cheapest AI stock.
In another article, we covered Comfort Systems USA, Inc. (NYSE:FIX) and shared the list of best performing S&P 500 stocks in the last 2 years. In its Q4 2025 investor letter, Aristotle Growth Equity Fund noted Comfort Systems USA, Inc. (NYSE:FIX) as a compelling investment opportunity due to its strong exposure to high-growth technology and manufacturing sectors. In addition, please check out our hedge fund investor letters Q4 2025 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.
