Artisan Partners, an investment management company, released its first-quarter 2026 investor letter for the “Artisan Mid Cap Fund”. A copy of the letter is available to download here. In Q1 2026, the Artisan Mid Cap Fund reported negative absolute returns but slightly outperformed the Russell Midcap® Growth Index. The market favored lower volatility and income-oriented equities, with value outpacing growth significantly. Despite challenges for growth strategies, selective stock choices in sectors like industrials and healthcare provided strength, while consumer discretionary faced weaknesses. Mid- and small-cap indices showed resilience amid lagging large-cap growth stocks. The escalating conflict in Iran influenced market behavior, and AI-related investments continued to support capital spending and earnings. In addition, please check the Fund’s top five holdings to know its best picks in 2026.
In its first-quarter 2026 investor letter, Artisan Mid Cap Fund highlighted Comfort Systems USA, Inc. (NYSE:FIX) as a leading contributor. 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 May 8, 2026, Comfort Systems USA, Inc. (NYSE:FIX) closed at $1,952.37 per share. One-month return of Comfort Systems USA, Inc. (NYSE:FIX) was 19.94%, and its shares gained 332.07% over the past 52 weeks. Comfort Systems USA, Inc. (NYSE:FIX) has a market capitalization of $68.73 billion.
Artisan Mid Cap Fund stated the following regarding Comfort Systems USA, Inc. (NYSE:FIX) in its Q1 2026 investor letter:
“Among our top contributors in Q1 were Comfort Systems USA, Inc. (NYSE:FIX), Twist Bioscience and RBC Bearings. Comfort Systems is a provider of heating, ventilation and air conditioning services. Strong demand from data center construction, driven by hyperscaler customers, now generates a significant portion of the company’s revenue. Recent results exceeded expectations, with accelerating revenue growth supported by a strong backlog and continued expansion in modular capacity. We view the company as well positioned to benefit from sustained investment in data center infrastructure.”
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, 72 hedge fund portfolios held Comfort Systems USA, Inc. (NYSE:FIX) at the end of the fourth quarter, up from 67 in the previous quarter. Comfort Systems USA, Inc.’s (NYSE:FIX) EPS reached $10.51 in the first quarter of 2026, representing more than double that of Q1 2025. While we acknowledge the potential of Comfort Systems USA, Inc. (NYSE:FIX) as an investment, we believe certain AI stocks offer greater upside potential and carry less downside risk. If you’re looking for an extremely undervalued AI stock that also stands to benefit significantly from Trump-era tariffs and the onshoring trend, see our free report on the best short-term AI stock.