Big Tech is turning AI into America’s investment cycle
Five charts to start your day
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The AI boom is no longer just a stock market story. Tech and related companies now account for almost half of all S&P 500 capital expenditure, according to Topdown Charts and LSEG, turning data centres, chips and cloud infrastructure into one of the main engines of US corporate investment.
That helps explain why markets remain so sensitive to Big Tech earnings. The largest hyperscalers are expected to spend hundreds of billions of dollars this year, largely on AI infrastructure, and that money is flowing through semiconductors, utilities, construction and power equipment.
The risk is concentration. If AI demand keeps rising, this investment cycle can support a much wider industrial boom. If returns disappoint, the problem will not stay inside Silicon Valley. A capex cycle this large becomes part of the economy itself.
Source: Topdown Charts
The deeper concern is not that AI is a bubble, or that Big Tech is spending too much. It is that so much of the market now rests on a single belief: that today’s enormous investment will become tomorrow’s enormous profit.
That may turn out to be true. But markets are rarely undone by stories that sound ridiculous. They are usually undone by stories that sound obvious for just a little too long.
I’ve got four more charts that expand on this story, but they’re for paid subscribers. Consider joining if you want the full edition.
