Global memory chip makers SK Hynix and Micron Technology both crossed the $1 trillion market capitalization threshold today, marking the latest milestone in the AI infrastructure investment boom.

The breakthrough reflects tech giants’ insatiable demand for high-performance memory chips. As training and inference needs for large language models like ChatGPT and Claude continue to surge, supply of HBM (High Bandwidth Memory) chips for AI accelerators remains tight. SK Hynix, a leading HBM supplier, has been a direct beneficiary.

Analysts note this signals a fundamental shift in the semiconductor landscape — memory chips, traditionally viewed as cyclical commodities, are now core strategic assets in the AI era. TSMC and Nvidia long ago crossed the trillion-dollar threshold; now memory makers join the club.

Market consensus expects HBM demand to remain strong for years as more AI models are deployed and enterprise AI applications proliferate.