Taiwanese investors are taking on heavy debt to ride the artificial-intelligence stock boom, loading up on shares of companies tied to chipmaker TSMC. The borrowing spree has pushed margin debt to elevated levels, and some market watchers warn that a stumble in TSMC's growth could trigger a sharp selloff.
The TSMC-Driven AI Bet
Taiwan Semiconductor Manufacturing Co., the world's largest contract chipmaker, has become the centerpiece of the AI trade. Its advanced chips power everything from data-center servers to generative-AI models, and its stock has surged as demand skyrockets. Local investors, both retail and institutional, have poured into TSMC shares and other AI-linked equities, often using borrowed money to amplify their positions.
Margin Debt Levels Climb
Data from Taiwan's stock exchange shows that margin lending — money borrowed from brokers to buy stocks — has risen sharply in recent months. The trend mirrors the frenzy around AI globally, but it carries extra risk in a market where TSMC alone accounts for roughly a third of the main index's weighting. When investors borrow heavily, even a small dip can force margin calls, leading to forced selling that accelerates losses.
The Downside Risk
If TSMC's growth falters — whether from a slowdown in AI spending, geopolitical tensions, or a downturn in semiconductor demand — the leveraged positions could unwind quickly. The resulting volatility could cascade through the broader Taiwanese market, which has become increasingly dependent on the AI narrative. For now, the bets keep piling up, but the margin debt leaves little room for error. The question hanging over the market is simple: How long can TSMC's rocket ride keep going before the borrowed money starts to burn?
