Amphenol CorporationStrong Q1 orders up 78% YoY, book-to-bill 1.24x, broad-based demand across end markets.

Mar Vista Investment Partners highlighted Amphenol Corporation as a leading contributor in its U.S. Quality Strategy during the second quarter of 2026. The strategy returned 12.71% net, trailing the Russell 1000 and S&P 500 indices which returned 15.14% and 15.20% respectively. Amphenol delivered a strong first quarter with a book-to-bill ratio of 1.24 times, driven by a 78% year-over-year increase in orders, and management characterized demand as broad-based across end markets and geographies. The firm noted that investor concerns about a near-term shift from copper to optical interconnects in AI data centers were misplaced, and Amphenol maintains exposure to optical opportunities through its acquisition of CommScope's Connectivity Solutions business. Amphenol shares recovered during the quarter as confidence grew in durable demand for copper interconnect solutions, supported by strong bookings growth and an improving demand outlook.
Amphenol CorporationStrong Q1 orders up 78% YoY, book-to-bill 1.24x, broad-based demand across end markets.
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