The AI trade has been a wrecking ball this year, and for months nothing seemed to slow it down. Not rising bond yields, not oil prices, not inflation data. On Friday, that finally cracked.
A jump in Treasury yields, a spike in oil, and a fresh round of inflation worry hit the same day, sending the rally into a sharp reversal.
The 10-year Treasury yield - the interest rate the US government pays to borrow for 10 years - climbed to 4.59% Friday, a level it hasn't touched since February 2025.
Higher yields are bad for stocks for two reasons. They make bonds look like a better deal compared to stocks, so some money rotates out, and they raise borrowing costs for every company, which eats into future profits.
Tech feels that pain more than most. The whole AI story is built on the idea that today's spending pays off years from now, so when borrowing costs rise, those future profits get discounted more harshly. Think of it like buying a house when mortgage rates double - the house is the same, but the math isn't.
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The other issue is how narrow this year's rally has been.
A handful of names did most of the heavy lifting, including Nvidia, Broadcom, Cisco, and Taiwan Semiconductor. Their valuations are now at levels some analysts compare to the dot-com era.
The Russell 2000, which tracks smaller companies, fell harder than the big indexes on Friday. That gap usually shows up before a broader pullback, and it's already echoing overseas as South Korea's chip-heavy Kospi index dropped sharply, with European markets weakening in step.
Oil added to the pressure, with Brent crude sitting near $110 a barrel because the Strait of Hormuz - the shipping lane where about a quarter of the world's seaborne oil moves - is still mostly closed. Higher oil keeps inflation sticky, which keeps the Fed cautious.
Two big questions shape the next few weeks.
The first is the Fed. Jerome Powell is on the way out, and traders are openly debating whether his replacement will cut rates this year or keep policy tight to deal with oil-driven inflation.
The second is whether the AI rally was always going to take a breather here, since corporate spending on AI infrastructure is still climbing and earnings from the big chip and cloud names are still strong. Friday was a reset, not yet a regime change.
Five hundred Dow points in one session has a way of making investors pay attention to the bond market again.
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Source: Bloomberg
