Key Highlights

  • Amphenol reported record second-quarter net sales of $8.8bn, up 55% in US dollar terms, with orders of $10.7bn producing a book-to-bill ratio of 1.23 to one.
  • TE Connectivity reported fiscal third-quarter net sales of $5.16bn, up 14%, with its Digital Data Networks business, the clearest AI signal, up about 34%.
  • Corning reported second-quarter core sales up 17% to $4.74bn, with its Optical Communications segment up 32% to $2.072bn as enterprise-network sales tied to AI data centres rose 65%.

Much of the attention on the artificial-intelligence boom goes to the chips and the software, yet none of it works without a physical layer of connectors, cables and glass that carries power and data between millions of components. That is why Amphenol Corporation (NYSE:APH), TE Connectivity plc (NYSE:TEL) and Corning Incorporated (NYSE:GLW) reward a closer look: they build the largely unglamorous hardware that AI infrastructure cannot function without, and Demand for it is currently surging. Each sits at a slightly different point in that physical layer, and their most recent results illustrate both the scale of the opportunity and the differences between them. Where semiconductors have captured the headlines, the connectors, sensors and glass fibre that link them are proving to be an equally direct way to gain exposure to AI infrastructure spending.

Amphenol Corporation (NYSE:APH): Interconnects and an Acquisition Engine

Amphenol Corporation, a NYSE-listed maker of electronic connectors and interconnect systems, reported record results for the second quarter ended 30 June 2026. Net sales reached $8.8bn, up 55% in US dollar terms and 30% on an organic basis, while adjusted Earnings were $1.35 per diluted share, up 67%. Orders of $10.7bn produced a book-to-bill ratio of 1.23 to one, a sign that demand is still running ahead of shipments. Chief executive Adam Norwitt pointed to exceptional organic growth in the IT datacom market as the main driver. The company also raised expectations for its CommScope acquisition, now guiding to about $4.6bn of related sales and $0.30 of per-share accretion for 2026, underlining how central deal-making has become to its growth.

TE Connectivity plc (NYSE:TEL) and Corning Incorporated (NYSE:GLW): Sensors and Glass

TE Connectivity plc, a NYSE-listed connector and sensor group, delivered net sales of $5.16bn for its fiscal third quarter ended 26 June 2026, up 14% (12% organically), with adjusted earnings of $2.94 per share, up 22%. The clearest AI signal came from its Digital Data Networks business, where sales rose about 34%. Chief executive Terrence Curtin said orders climbed more than $1bn year on year to $5.7bn, with momentum in both data centres and broader energy infrastructure. The company also agreed to buy Astrodyne TDI for roughly $1.4bn to expand its industrial power offering, a deal it expects to add more than $250m in annual sales.

Corning Incorporated, the NYSE-listed specialty-glass and optical-fibre pioneer, sits further upstream. Second-quarter 2026 core sales rose 17% to $4.74bn and core earnings rose 30% to $0.78 per share. Its Optical Communications segment generated $2.072bn, up 32%, with enterprise-network sales, tied closely to AI data centres, up 65% and generative-AI product sales rising faster still. Management's upgraded Springboard plan targets an annualised Revenue run rate of $20bn by the end of 2026 and a 19% sales compound annual growth rate through to the end of 2030.

What Readers Should Watch

Together the three show how broadly AI Capital spending is flowing into the physical layer, but they are exposed in different ways. Amphenol is the most acquisitive and the most directly geared to datacom; TE Connectivity blends a large transportation and industrial base with fast-growing data-centre demand; Corning supplies the fibre and glass that sit beneath both.

Investors should weigh integration risk at Amphenol and TE as they absorb sizeable acquisitions, the durability of enterprise-network demand at Corning, and the general risk that any pause in hyperscaler build-outs would feed through to orders quickly. Reported figures are historical, and management targets such as Corning's Springboard goals are expectations rather than commitments. Book-to-bill ratios and order growth are the metrics most worth tracking in the coming quarters.