AI Infrastructure Fuels Tech Stock Rockets

Despite Nvidia's subdued start to 2026, Lumentum Holdings and Applied Materials are demonstrating robust market performance, fueled by substantial investments in AI infrastructure. Lumentum Holdings, a manufacturer of optical and photonic components, has seen its revenue increase by 72% in the first nine months of fiscal 2026, driven by high demand for its products in data centers that facilitate high-speed connectivity essential for AI model training and inference.

Applied Materials, a key player in the semiconductor equipment market, is also experiencing accelerated growth. Its revenue rose 11% year over year in the second quarter of fiscal 2026, with guidance indicating a 23% jump in the current quarter. This growth is attributed to increased demand for wafer fabrication equipment needed to produce AI chips, with significant contributions from leading-edge foundry equipment and advanced packaging.

Both companies are well-positioned to capitalize on the expanding AI market. Lumentum's data center products, which carry higher margins, are translating into strong bottom-line growth, with earnings per share increasing by 4.5 times year over year. Applied Materials, through its partnerships with major chip manufacturers, is set to benefit from continued investments in AI-focused equipment, with analysts projecting substantial earnings growth for the company.