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Shares of Amphenol Corp. Cl A (APH) shed 1.06% to $138.58 Tuesday, on what proved to be an all-around grim trading session for the stock market, with the S&amp;P 500 Index  falling 0.09% to 6,840.51 and Dow Jones Industrial Average  falling 0.38% to 47,560.29.
Amphenol Corp. Cl A closed 4.01% below its 52-week high of $144.37, which the company reached on November 10th.
The stock underperformed when compared to some of its competitors Tuesday, as Eaton Corp. PLC (ETN) fell 0.47% to $341.76, TE Connectivity PLC (TEL) rose 0.95% to $236.20, and Enphase Energy Inc. (ENPH) rose 0.99% to $31.55.
Trading volume (5.4 M) remained 2.5 million below its 50-day average volume of 7.9 M.
Data source: Dow Jones Market Data, FactSet. Data compiled December 9, 2025.
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(END) Dow Jones Newswires
12-09-25 1635ET

<p>Amphenol Corp. Cl A stock fell 1.06% to $138.58 on Tuesday, underperforming compared to competitors Eaton Corp. PLC, TE Connectivity PLC, and Enphase Energy Inc. The stock closed 4.01% below its 52-week high, with trading volume 2.5 million below its 50-day average. The S&P 500 and Dow Jones also fell slightly.</p>

Amphenol Corp. Cl A Stock Underperforms Tuesday When Compared To Competitors