SK Hynix and Micron Technology both saw their market capitalizations exceed US$1 trillion on Wednesday [1, 2].
The milestone reflects a massive shift in investor confidence toward the hardware powering artificial intelligence. As AI models require vast amounts of high-speed memory, these companies have become essential pillars of the global tech infrastructure.
SK Hynix, based in South Korea, experienced a surge in its share price on Wednesday, with reports on the gain ranging from 9.3% [3] to as high as 13% [5]. This spike contributed to a broader rally for the company, which has seen its 12-month gains exceed 1,000% [3].
Micron Technology, headquartered in the U.S., also crossed the US$1 trillion threshold [1, 2]. The simultaneous rise of both companies underscores a broader market frenzy centered on memory chips, a critical component for the servers and processors used by AI developers.
Analysts said that the valuation jump is tied to the belief that the AI boom will sustain higher demand and pricing power for memory hardware [2, 4]. While the semiconductor industry has historically been cyclical, the current trajectory suggests a more prolonged period of growth driven by generative AI applications.
SK Hynix is noted as one of the few companies globally to reach this valuation, with some reports identifying it as the third Asian company to join the US$1 trillion club [6].
“SK Hynix and Micron Technology both saw their market capitalisations exceed US$1 trillion”
The entry of two memory chip manufacturers into the US$1 trillion club signals a transition in the AI trade. While initial investment focused heavily on GPU designers like Nvidia, the market is now pricing in the critical importance of the memory layer. This suggests that the hardware bottleneck for AI is shifting toward memory capacity and bandwidth, potentially creating a new valuation floor for the entire semiconductor supply chain.
