⚠ A Rival Turnaround Would Cut Both WaysModerate threat

TSMC's dominance rests partly on its rivals' failures, and failures can be reversed. Intel has staked its future on a foundry turnaround backed by US government support¹ and a national imperative to restore domestic leading-edge manufacturing; Samsung continues to invest heavily and could resolve its yield problems. If either genuinely closed the gap and offered a credible leading-edge alternative, it would not need to beat TSMC to hurt it — merely being a viable second source would give customers negotiating leverage they currently lack and pressure the pricing power TSMC's near-exclusivity now affords.

Crucially, TSMC's own customers and their governments actively want a second source. The concentration risk that worries the world is a reason for Apple, Nvidia, and the hyperscalers — and Washington — to support and patronize an alternative even at some cost or performance penalty, for strategic resilience. So TSMC faces the unusual dynamic of customers who depend on it yet are motivated to help build its competition. The rivals remain far behind today, and turning around a leading-edge foundry is extraordinarily hard. But an investor should not assume TSMC's competitors stay broken forever: a credible second source, whenever it emerges, would erode not TSMC's leadership so much as the extraordinary pricing power that its current near-exclusivity provides — and the whole world is trying to make one appear.