Here's What Lifted Amphenol Corporation (APH) in Q2

Madison Investments, an investment advisor, released its “Madison Mid Cap Fund” second-quarter 2025 investor letter. A copy of the letter can be downloaded here. In the second quarter, the fund (Class Y) returned 5.2% compared to the 8.5% increase for the Russell Midcap Index. In addition, please check the fund’s top five holdings to know its best picks in 2025.

In its second-quarter 2025 investor letter, the Madison Mid Cap Fund highlighted stocks such as Amphenol Corporation (NYSE:APH). Amphenol Corporation (NYSE:APH) designs and manufactures electrical, electronic, and fiber optic connectors. The one-month return of Amphenol Corporation (NYSE:APH) was 11.62%, and its shares gained 85.21% of their value over the last 52 weeks. On September 10, 2025, Amphenol Corporation (NYSE:APH) stock closed at $122.07 per share, with a market capitalization of $149.038 billion.

Madison Mid Cap Fund stated the following regarding Amphenol Corporation (NYSE:APH) in its second quarter 2025 investor letter:

"The top five contributors for the quarter were Amphenol Corporation (NYSE:APH), Microchip Technology, Arista Networks, MKS, and Liberty Formula One. Given the extremely strong returns in technology stocks during the quarter, it is no surprise that four of our strongest contributors came from this sector. Amphenol’s stock soared following 1Q results that showed 33% organic revenue growth and nearly 60% earnings-per-share growth, well above estimates. The company is benefiting from the buildout of AI-related datacenters and their demand for Amphenol’s high-speed, low-latency interconnect systems."

Amphenol Corporation (NYSE:APH) is not on our list of 30 Most Popular Stocks Among Hedge Funds. As per our database, 81 hedge fund portfolios held Amphenol Corporation (NYSE:APH) at the end of the second quarter, up from 69 in the previous quarter. Amphenol Corporation’s (NYSE:APH) second quarter sales were up 57% in U.S. dollars and 56% in local currencies to $5.650 billion. While we acknowledge the potential of Amphenol Corporation (NYSE:APH) 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.

In another article, we covered Amphenol Corporation (NYSE:APH) and shared TimesSquare Capital U.S. Focus Growth Strategy's views on the company. In addition, please check out our hedge fund investor letters Q2 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.