Memory chipmakers ride the AI wave to near-trillion-dollar valuations, dragging Asian indexes to record highs
SK Hynix reached a market capitalization of $1.12 trillion on May 27, 2026, closing up 9.3% after touching an intraday high of nearly 15%. Micron shares surged nearly 19-20% on May 26 after UBS raised its price target significantly. Year-to-date, Micron’s stock has climbed more than 240%. SK Hynix shares have risen over 215% in the same period. Even Samsung posted gains between 149% and 165%. The KOSPI hit record levels as investors piled into anything connected to artificial intelligence infrastructure.
Every major tech company on the planet is racing to build out AI infrastructure, and all of it requires massive amounts of high-bandwidth memory. Multiple analysts have pointed to sustained memory chip demand exceeding available supply well into 2028.
SK Hynix doubles down with a $29.4 billion raise #
In late June 2026, SK Hynix disclosed plans to raise approximately $29.4 billion through a Nasdaq American Depository Receipts listing. The capital is earmarked for expanding fabrication capacity dedicated to AI semiconductor production. SK Hynix shares jumped 11% on the announcement alone.
The ADR listing opens the door to significant foreign investment. US-based institutional investors who previously had limited exposure to SK Hynix through Korean exchange listings will now have a direct, liquid way to buy in.
What this means for investors #
The supply-demand imbalance stretching to 2028 gives these companies an unusual degree of pricing power. For investors thinking about the broader supply chain, equipment manufacturers, substrate suppliers, and advanced packaging companies all stand to benefit from the billions being poured into new fabrication capacity. SK Hynix’s $29.4 billion raise alone will flow through dozens of suppliers and contractors.
Valuations have expanded dramatically. A stock that’s up 240% year-to-date is pricing in years of perfect execution. Memory chip manufacturing is concentrated in South Korea and the US, and both regions face ongoing tensions with China over semiconductor export controls. The smart money is watching whether the supply gap actually persists through 2028 as projected, or whether the industry’s massive capital spending closes it sooner than expected.
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