Taiwan Semiconductor Manufacturing Company reported stronger-than-expected Q2 2026 earnings on July 16, then immediately raised its capital expenditure forecast. The stock dropped 7% anyway.

TSMC posted first-quarter revenue of $35.9 billion, up 41% year-over-year. Gross margin reached 66.2%, a sign the foundry business is pricing well and executing efficiently. Yet markets sold the news.

Capex Spirals Higher

Management raised 2026 capex guidance to $60.0 billion through $64.0 billion, up from the prior range of $52–56 billion. That’s an additional $8 billion to $12 billion in spending this year alone.

The increase reflects accelerating demand for advanced chip capacity from AI companies. NVIDIA, AMD, and other AI accelerator makers are willing to pay premiums for cutting-edge process nodes. TSMC is racing to build capacity to capture that demand.

But investors worry about returns. Massive capex bets only pay off if the revenue follows. If AI demand flattens or customers over-ordered, TSMC carries capacity it can’t fill.

CoWoS Bottleneck Lingers

TSMC also guided Q2 revenue to $39–40.2 billion, representing roughly 32% growth year-over-year. Advanced packaging capacity remained the limiting factor on shipments. Customers had cash and orders but couldn’t get chips fast enough.

This is a good problem to have. It means TSMC can push prices higher. But it also means future quarters are already spoken for, and if AI capex slows, TSMC’s massive fab buildout becomes a liability.

Geopolitical Risk Overhead

Management cited geopolitical tensions as ongoing headwinds. Taiwan’s position in US-China relations casts doubt on long-term security. American pressure to move advanced production stateside competes with TSMC’s Taiwan heritage and cost structure.

For now, TSMC is the only company that can make the most advanced chips at scale. That dominance comes with pressure from Washington and risk from Beijing.

TSMC is spending like it believes AI demand will never slow. History suggests that’s a dangerous bet. But for now, the market has no choice but to believe it too.