⚠ Scale Concentrates Cyclical RiskModerate threat

Enormous scale is an advantage in good times and an exposure in bad ones. As the largest foundry, TSMC has the most capacity to fill, and in a semiconductor downturn — when demand slumps and the whole industry suffers overcapacity — the biggest player carries the largest burden of expensive, underutilized fabs. TSMC's revenue fell in the 2023 downturn, a reminder¹ that scale does not exempt it from the industry's violent cycles. Wafer shipments fell harder, from 15.3 million 12-inch-equivalent wafers in 2022 to 12.0 million², and in 2025 TSMC still shipped fewer than in 2022³. Scale merely makes the swings large in absolute terms. Having built vast capacity for a boom, TSMC is exposed if the boom pauses.

The current risk is sharpened by the AI-driven capacity build-out. TSMC is spending sixty billion dollars and more a year to add leading-edge capacity on the assumption that AI demand keeps growing, and if that demand digests or disappoints, the company could find itself with expensive new fabs running below capacity — the classic semiconductor trap of building for a peak that then recedes. Scale makes the fixed-cost leverage magnificent on the way up and painful on the way down. TSMC manages this better than any peer through its cost discipline and its diversified customer base, and its leading-edge focus is less cyclical than commodity chips. But the largest foundry in a cyclical industry, building aggressively into an AI boom, carries the most to lose if the cycle turns — a risk that grows with every billion of capacity added.