South Korea Retail Traders Hit Record Leverage Bets on AI Chip Stock Rally

South Korea's retail traders are piling into leveraged bets on local equities at an unprecedented pace, pushing margin debt to a record high. The surge is directly tied to a powerful rally in the country's heavyweight technology stocks, reignited by the global frenzy around artificial intelligence. This indicates a concentrated, high-risk gamble by individual investors chasing momentum in a volatile sector.

The data reveals a clear pattern: the return of the 'AI trade' is the primary catalyst. Investors are using borrowed money to amplify their exposure to semiconductor giants and other tech firms perceived as beneficiaries of the AI boom. This behavior mirrors past episodes of speculative excess, where retail leverage has both fueled rallies and exacerbated subsequent downturns.

The record leverage creates a fragile foundation for the market's gains. It raises the risk of a sharp, disorderly correction if the AI-driven rally stalls or reverses, potentially triggering margin calls and forced selling. The situation places intense scrutiny on the stability of these high-flying tech stocks and the broader market's vulnerability to a sudden shift in retail sentiment.