AXT, Inc. (AXTI) | AI Infrastructure Stock
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About
AXT, Inc. Company Overview
AXT, Inc. (NASDAQ: AXTI) is a semiconductor materials company headquartered in Fremont, California. Through its Tongmei subsidiary in Beijing it makes indium phosphide, gallium arsenide and germanium substrates. Indium phosphide wafers are the base material for the lasers and photodetectors inside optical transceivers, which connect GPUs and switches in AI data centers. AXT sells to laser, transceiver and wireless chipmakers, and signed a long-term supply agreement with Lumentum in July 2026.
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