South Korea’s $2.5 Trillion Stock Crash Wipes Out AI Bets

A slow-motion collapse in South Korea’s main stock index has now erased $2.5 trillion in market value, delivering a brutal shock to investors who had piled into artificial intelligence-related shares. The Kospi—the benchmark index for companies listed on South Korea’s stock exchange—has been sliding for weeks, but the losses have recently accelerated. What once looked like a steady climb fueled by global excitement over AI has turned into a sustained sell-off. Many of the hardest-hit stocks are those tied to semiconductors and tech hardware, sectors that had surged on hopes of massive AI-driven demand. As those expectations sour, retail and institutional investors alike are facing steep paper losses. The decline has turned the market, once dubbed the world’s craziest, into what analysts describe as a “fright ride.” The term reflects the extreme volatility: sharp drops, brief rebounds, and no clear floor in sight. While the broader global tech trade has cooled, South Korea’s market is particularly sensitive because of its heavy concentration in a few large chipmakers. When those giants stumble, the entire index feels it. For now, there is little sign of a bottom. Investors who borrowed money to bet on continued gains are being forced to sell, which only adds more downward pressure. The $2.5 trillion loss is a stark reminder that even the most promising technological revolutions can produce devastating financial reversals when expectations outpace reality.