SK Hynix Crosses $1 Trillion Mark as AI Memory Chip Boom Continues

May 27, 2026 - 03:31

SK Hynix has become the latest semiconductor company to join the exclusive $1 trillion club, riding a wave of investor enthusiasm for artificial intelligence memory chips. The South Korean chipmaker's market capitalization surged past the milestone this week, following in the footsteps of US rival Micron Technology, which crossed the same threshold earlier this year.

The rally reflects a broader boom in the memory chip sector, driven by skyrocketing demand for high-bandwidth memory used in AI data centers. SK Hynix, a key supplier to Nvidia, has seen its stock price more than double over the past 12 months as AI workloads require ever-faster and more efficient memory solutions. Analysts point to the company's dominance in HBM3 and HBM3E chips, which are critical for training large language models and running inference tasks.

The milestone underscores how the AI revolution is reshaping the semiconductor landscape. Traditional memory chip makers, long seen as cyclical and volatile, are now viewed as growth stocks tied to the AI megatrend. SK Hynix's strong earnings reports and forward guidance have fueled confidence, with the company reporting record quarterly profits in recent months.

However, some market watchers caution that the rally may be overheating. Memory chip prices remain sensitive to supply-demand dynamics, and any slowdown in AI spending could trigger a sharp correction. For now, though, the momentum shows no signs of fading, with both SK Hynix and Micron benefiting from a global race to build AI infrastructure.