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Amphenol Corporation (APH) is a global manufacturer of electrical, electronic, and fiber-optic connectivity products. Headquartered in Wallingford, Connecticut, the company’s product portfolio spans connectors, cables, antennas, sensors, and circuit boards for a wide range of industries.
Amphenol’s extensive product range has contributed to its growth into a company with an approximate market cap of $209.6 billion. Its stock performance has been notable, with a 50.9% increase over the past 52 weeks, significantly outperforming the S&P 500 Index ($SPX), which returned 20.6% in the same timeframe. The momentum continues into 2026, with APH stock up 22.7% year-to-date (YTD), outpacing the broader market’s 13.9% rise.
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Over the past year, Amphenol has also outperformed its sector, as the State Street Technology Select Sector SPDR ETF (XLK) gained 42.2%. The ETF, however, remains ahead in 2026 with a 32.5% YTD increase.
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Much of Amphenol’s impressive growth is due to its increasing involvement in artificial intelligence (AI) infrastructure, where hyperscalers are investing heavily in data centers and the necessary connectors and cables to support them. The company’s Q2 FY2026 results reflect this demand, with consolidated net sales rising 55% year over year (YOY) to $8.76 billion
IT datacom led the way with 63% organic growth, while Amphenol increased its adjusted operating margin to 29.8%, a 4.2-percentage-point rise. The positive trend extended beyond datacom, with total orders jumping 94% YOY to $10.7 billion, pushing the book-to-bill ratio up to 1.23x.
Management has provided optimistic near-term guidance, forecasting Q3 FY2026 sales of $9.3 billion to $9.4 billion, indicating 50% to 52% growth. Adjusted diluted EPS is expected to be in the range of $1.40 to $1.42, growing 51% to 53% YOY.
For the full year FY2026 ending in December,…
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