$SK Hynix(SKHY.US)SK Hynix's timing for its U.S. stock market listing is impeccable. Currently, AI memory is in short supply, the company's performance has surged, and its profits are expected to multiply this year.

It focuses on high-end HBM memory. The U.S. stock market lacks such a pure-play AI memory stock. After listing, it's highly likely to be included in the Nasdaq 100, leading to massive passive buying by index funds, which will support the stock price. The $29 billion fundraising can also be used to expand production and capture market share.

The risks are also prominent: The industry is making big money now, with Hynix and Samsung both expanding production aggressively. Once this new capacity comes online and if AI companies reduce procurement, oversupply and a sharp price drop will follow immediately. Apple has already raised product prices due to memory cost increases, indicating downstream players can't bear high prices and demand is nearing its limit.

Memory stocks are extremely volatile. The industry is currently at a cyclical peak. High-level financing for expansion has historically been a signal of a peak. Short-term stock prices have upward momentum, but long-term investors should be wary of a sharp decline caused by a supply-demand reversal.