Key Highlights

● One commentator argued AI stocks are splitting between self-funders and companies that must borrow.

● Debt-reliant names such as CoreWeave fell hardest, with its debt put above $50 billion.

● Large cash-generating tech firms fell far less, though Meta and Alphabet also declined.

● All 30 members of the PHLX Semiconductor Index fell on Friday.

The thesis

As AI stocks slid this week, one market commentator offered a framework for understanding the damage. "The AI group is now splitting between companies that can fund the buildout themselves and those that have to borrow," the commentator wrote.

He went further: "That is a change in character, and it's another reason the leaders no longer look like a safe haven."

The comment captured the week's central theme. Market commentary said investors moved from asking what AI can do to how it will be financed, and that the rotation erased more than $1 trillion from semiconductor and AI-related stocks over the week.

The borrowers

Friday's session illustrated the split. Companies that rely heavily on debt to build data centers fell hardest. CoreWeave (NASDAQ:CRWV) plunged to $61.39, according to market data. Its debt is put at more than $50 billion, and the cost to insure that debt hit a record. Its notes due 2032 have traded below 80 cents on the dollar since their June issue.

Nebius Group (NASDAQ:NBIS), Applied Digital (NASDAQ:APLD), IREN (NASDAQ:IREN), Cipher Digital (NASDAQ:CIFR) and DigitalOcean (NYSE:DOCN) all plunged too, per market reports. Cipher's zero-coupon convertible notes, priced this week to fund its Barber Lake data center, settled on Friday.

The self-funders

The largest technology companies, which generate enormous cash flows, fell far less. Microsoft (NASDAQ:MSFT) and Amazon (NASDAQ:AMZN) slipped. Apple (NASDAQ:AAPL) edged higher on strong demand for its foldable iPhone Duo, according to market commentary. Nvidia (NASDAQ:NVDA) wobbled amid mixed reports on its close.

Still, the commentator's second point, that leaders "no longer look like a safe haven," also showed up. Meta Platforms (NASDAQ:META) fell amid concern over debt-funded AI spending, and Alphabet (NASDAQ:GOOGL) declined on worries about the cash-flow effects of data-center borrowing, per market reports. The Alphabet worries suggested that data-center borrowing has become a concern even for companies with deep pockets.

Others see it similarly

Goldman Sachs described hedge-fund selling as a "tactical rotation" away from smaller AI names, according to market reports. Citizens Financial (NYSE:CFG) CEO Bruce Van Saun, speaking about lending, offered a view from the other side of the trade: "Even with higher rates, the kind of desire to get the compute power in place, the players aren't really batting an eyelash."

Not everyone agrees the borrowers deserve the punishment. A senior software analyst at BofA Securities said of CoreWeave: "First of all, this is more sentiment driven. This is not about fundamentals." Nvidia CEO Jensen Huang said in Stockholm on Thursday that CoreWeave's "cost of capital is actually decreasing."

Market context

The Nasdaq Composite sank 572.99 points to 26,140.03 on Friday and had its worst week since June. The S&P 500 slid 84.62 points to 7,659.44, while the Dow Jones Industrial Average slipped 175.28 points to 52,002.41. All 30 members of the PHLX Semiconductor Index fell, according to market data, with Advanced Micro Devices (NASDAQ:AMD) and Micron Technology (NASDAQ:MU) among the decliners.

Big Tech Spending Plans Test the Split

The Federal Reserve announces its next decision on Oct 28. Before that, Big Tech earnings next week will test the split: Netflix (NASDAQ:NFLX) reports Tuesday, Oct 20, and Meta reports Wednesday, Oct 21, alongside Tesla (NASDAQ:TSLA), Lam Research (NASDAQ:LRCX) and Texas Instruments (NASDAQ:TXN). Investors will be listening for capital-spending plans and how they are funded.