2026-09-16
9 分钟This is The Indicator from Planet Money.
I'm Ricky Mulvey.
And I'm Waylon Wong.
If you own stocks in the U.S., it's very likely that your money is tied up with mega tech companies.
That's because the 10 biggest stocks in the S&P 500 are names like Microsoft, NVIDIA, and Amazon.
And when these stocks dip, like they did this week on worries about AI spending, they take the market with them.
These same companies are starting to reshape the bond market.
Tech giants are borrowing hundreds of billions of dollars to finance AI data centers.
If your 401k has money invested in a U.S.
Bond fund, your savings could be fueling the buildout.
A buildout, by the way, that is a dominant force in the economy right now and affecting all of us.
This boom in data centers could lead to both productivity and financial gains,
but it also exposes new risks and it all comes back to bonds.
Today.
We look at how the bond markets are digesting this glut of AI-related bonds,
and we pose two questions that help us assess whether all of this borrowing is sustainable.
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