Amphenol Corporation

New York Stock Exchange
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Slightly Bullish +25

Madison Mid Cap Fund Trimmed Amphenol (APH) Due to Elevated Valuation

AI-generated analysis

📉 Madison Mid Cap Fund reduced its position in Amphenol (APH) during Q4 2025 due to concerns over the stock's elevated valuation.

🏆 Amphenol was a top-five contributor for the Fund in Q4 2025, driven by strong organic growth in its IT/Datacom business linked to AI data center spending.

📊 The Russell Midcap Index returned 10.6% for the full year 2025, significantly outpacing the Madison Mid Cap Fund which declined 1.2%.

🤖 Amphenol's shares surged 117.63% over the past 52 weeks and closed at $136.74 per share on March 10, 2026.

💰 Amphenol reported record fourth-quarter sales of $6.439 billion in 2025, a 49% year-over-year increase compared to Q4 2024.

📉 After trimming the position, Madison Investments believes the current holding level better matches the stock's risk/reward profile following its strong performance.

💡 Fund managers noted that while they appreciate Amphenol's potential, certain other AI stocks currently offer greater upside potential with less downside risk.

📈 Hedge fund ownership of Amphenol increased to 103 portfolios at the end of Q4 2025 from 89 in the previous quarter.

⚠️ The article suggests that the market environment in 2025 has favored more volatile and speculative companies, challenging quality-focused strategies like Madison's.

🏢 Amphenol is a leading manufacturer of electrical, electronic, and fiber optic connectors with a market capitalization of $168.08 billion.

Bullish Signals
  • Amphenol's IT/Datacom business continues to produce spectacular organic growth driven by AI-related data center spending.
  • The stock is a top five contributor to the Madison Mid Cap Fund, highlighting its significant recent performance.
  • Amphenol Corporation reported record sales in Q4 2025, reaching $6.439 billion, reflecting a massive 49% year-over-year increase compared to Q4 2024.
  • Shares gained 117.63% over the past 52 weeks, demonstrating strong momentum despite recent volatility.
  • The fund manager trimmed the position to maintain a level commensurate with the stock's current risk/reward following a tremendous run of strong performance.
Risk Factors
  • Madison Mid Cap Fund trimmed its position in Amphenol Corporation (APH) specifically due to concerns over an elevated valuation, capping gains after a massive 117.63% rise over the past 52 weeks.
  • The fund cited that while Amphenol's growth is driven by AI-related data center spending, the stock has already reflected these earnings and share price appreciation, reducing future upside relative to risk.
  • Amphenol Corporation (APH) was removed from the list of 40 Most Popular Stocks Among Hedge Funds Heading Into 2026, indicating a potential cooling in institutional sentiment despite holding positions in other funds.
  • Despite record Q4 2025 sales of $6.439 billion representing a 49% increase, investors are warned that certain other AI stocks offer greater upside potential and carry less downside risk than Amphenol.
  • The stock closed at $136.74 per share on March 10, 2026, entering a bearish territory relative to its recent peak following the one-month decline of -5.07%.
Full Analysis
Madison Mid Cap Fund disclosed in its fourth-quarter 2025 investor letter that it trimmed its position in Amphenol Corporation (APH) due to an elevated valuation. The fund noted that APH was a top-five contributor for the quarter, driven by spectacular organic growth in its IT and datacom business fueled by spending on AI-related data centers. As of March 10, 2026, Amphenol's stock closed at $136.74 per share, reflecting an 117.63% gain over the past 52 weeks, though it dipped -5.07% in the preceding month with a market cap of approximately $168 billion. The firm reduced its holdings to a level commensurate with the stock’s current risk and reward profile following this significant run-up. While the Russell Midcap Index gained 0.2% in Q4, the Madison Mid Cap Fund decreased by 1.2%, maintaining its focus on high-quality, profitable businesses despite a market environment that favored more volatile speculative companies. The article highlights that despite APH's strong performance and record fourth-quarter sales of $6.439 billion—a 49% increase compared to Q4 2024—the firm believes certain other AI stocks offer greater upside potential with less downside risk. It is noted that while 103 hedge fund portfolios held Amphenol at the end of the quarter, up from 89 previously, it does not appear on a specific list of the fund's most popular holdings heading into 2026. The report suggests investors might look toward other AI opportunities, particularly those benefiting from potential Trump-era tariffs and onshoring trends, referencing a separate free report available on the publisher's site for further analysis on that sector.