A record split in big tech earnings is forcing investors to price AI leaders stock-by-stock, sending single-stock dispersion to a 35-year high.
The S&P 500 rose 0.7% to close the week higher, but a record divergence in big tech earnings pushed single-stock dispersion to a 35-year high. Amazon.com Inc. jumped 15% after cloud revenue growth accelerated, while Apple Inc. fell 9% on a weaker-than-expected forecast, the widest gap between the two in years.
"Investors are no longer providing unconditional trust to companies and have begun demanding tangible results," said Victoria Fernandez, senior market strategist at Crossmark Global Investments.
Microsoft Corp. surged 16% after earnings, adding about $450 billion to its market capitalization in a single day, the largest one-day gain for any U.S. company. Meta Platforms Inc. dropped 8% after warning free cash flow could turn negative in the second half. The Nasdaq Composite fell 3.2% in July even as the Dow Jones Industrial Average rose 0.3%.
The divergence marks the first time since ChatGPT's launch that realized post-earnings volatility exceeded options-implied volatility across nearly all of the "Magnificent Seven," according to Bank of America's derivatives team led by Benjamin Bowler. The bank said the market is shifting from pricing AI as a single growth theme to judging each company on monetization, a transition that raises short-term rotation risk.
AI Investment Scrutiny Replaces Scale as the Metric
Amazon and Microsoft won positive evaluations by showing AI infrastructure spending is translating into cloud growth. Amazon Web Services posted net sales of $42.23 billion, above the $40.57 billion consensus, while Microsoft's cloud business accelerated. Apple, by contrast, failed to prove the short-term impact of its AI strategy, guiding to 9 percent to 11 percent revenue growth in the current quarter versus the 11.8 percent analysts expected.
Meta's warning that free cash flow could turn negative in the second half weighed on the stock, even as the company continues heavy spending on AI data centers. The Philadelphia Semiconductor Index managed a slight gain Friday but fell about 21 percent in July, as profit-taking hit memory and chip stocks that surged earlier in the year. Goldman Sachs said such corrections are normal for stocks that rallied sharply in a short period.
Rates and the Fed Add to the Cross-Asset Pressure
Rising Treasury yields compounded the stock-specific moves. The 10-year yield hit 4.75 percent Friday, its highest level in 18 months, after stronger-than-expected U.S. economic data and hawkish comments from Dallas Fed President Lorie Logan. The 30-year yield reached its highest level in 19 years. Fed Chair Kevin Walsh held rates steady at his second press conference, but bond investors questioned his commitment to controlling inflation, with Bank of America analysts calling the message "all hat, no cattle."
Higher discount rates lower the present value of future earnings, making high-valuation tech names more sensitive to yield moves. WTI crude rose 1.4 percent to $84.80 a barrel on Middle East tensions, adding to inflation concerns, while gold fell 1.3 percent to $4,105 an ounce.
The next test comes Friday with the U.S. employment report, followed by consumer earnings from McDonald's Corp. and Walt Disney Co. Markets are pricing a 67 percent chance of a quarter-point rate hike at the Federal Reserve's Sept. 15-16 meeting. S&P 500 profit growth is tracking near 47 percent, the strongest in more than five years, which analysts said limits the risk of a broad collapse even as AI-related stocks adjust.
This article is for informational purposes only and does not constitute investment advice.