Broader Market Held Firm Despite a Crack in the AI Trade

All major U.S. stock indices fell last week, ending a remarkable run of nine straight weekly gains for the S&P 500. But the headline numbers hide an unusually lopsided story. The Dow Jones Industrial Average slipped just 0.3 percent, while the technology-heavy NASDAQ Composite tumbled 4.7 percent and the broad S&P 500 fell 2.6 percent. The performance gap comes down to what each index owns: the NASDAQ and S&P are dominated by a handful of giant technology companies – the so-called “Magnificent Seven,” names like Nvidia (ticker: NVDA), Apple (AAPL), and Microsoft (MSFT) – whereas the Dow holds fewer of them. In fact, the “equal-weight” S&P 500, which treats every company the same, fell only about 0.5 percent. In plain terms, the average stock held up fine; the damage was concentrated in the market’s largest, most AI-focused names.

The spark was chipmaker Broadcom (ticker: AVGO), whose products help power AI computing. Its earnings were solid, but its forecast fell short of investors’ lofty expectations, and the disappointment rippled across the semiconductor group – the index of chip stocks suffered its worst single day since the early-pandemic crash of March 2020. Having climbed so far, so fast – technology recently traded near its most expensive level in a decade – AI stocks needed only a small letdown to trigger profit-taking.

Concerns about supply added to the unease. Meta Platforms (ticker: META), the parent of Facebook and Instagram, signaled it might raise tens of billions of dollars in new stock to fund its AI ambitions. A wave of large new stock offerings is also coming to market, including the eagerly awaited initial public offering (IPO) of Elon Musk’s SpaceX next week. Because more shares for sale can weigh on prices, investors are left to wonder whether the market can absorb so much at once.

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