The Elephant in the Room
This brings me to the uncomfortable part of the conversation. The case for semiconductor equipment stocks sounds wonderful at dinner parties, but the reality is fraught with danger. Every potential upside is chained to a very real threat.
First, there is the simple nature of the beast. Chip equipment is a leading indicator. If Google, Amazon, or Microsoft suddenly decide they have spent enough on data centres for a while, the music stops. Those billions in forward orders can vanish, leaving equipment makers holding a very expensive, empty bag. The current upcycle feels resilient, but resilience is not immunity.
Second, we have the geopolitical chessboard. Both Applied Materials and Lam Research rely on Chinese customers for a hefty chunk of their revenue. Washington has already restricted the sale of top-tier equipment to Beijing. If those export controls tighten further, the addressable market for these companies shrinks overnight. You could see revenues take a severe hit that no amount of AI demand in California could possibly fix. Geopolitics does not care about your portfolio.
Finally, there is customer discipline. Right now, tech giants are spending like drunken sailors on shore leave. But eventually, their shareholders will demand to see a return on that investment. If AI fails to deliver the promised financial windfall, the data centre expansion plans will be slashed. That would ripple through the foundries and crash straight into the equipment makers.