Strong Economic Data Meets Rising AI Concerns

Strong Economic Data Meets Rising AI Concerns

Key takeaways

  • Strong growth comes with sticky inflation: S&P Global’s flash composite Purchasing Managers’ Index (PMI) rose to 57.6, its second-strongest reading since 2022. But selling prices climbed at the fastest pace in more than four years, and rising oil prices are adding to inflation pressures.

  • AI spending faces growing scrutiny: Meta raised its 2026 capital spending plans and reported negative free cash flow for the first time since 2012, a sign the artificial intelligence (AI) buildout increasingly relies on debt. AI-related stocks fell for a second week, pulling the S&P 500 down 0.54 percent.

  • Bonds and broader markets support diversification: The 10-year Treasury yield has fallen from 5.30 percent to 4.99 percent since October 5 as investors weigh risks to future growth. Meanwhile, 66 percent of S&P 500 companies posted gains, and small caps and real estate investment trusts advanced.

Economic data that continued to show a strong U.S. economy, housing aside, took a back seat this week as investors once again focused on potential risks to future growth: rising energy prices, sticky inflation, and most importantly, questions about the sustainability of the artificial intelligence (AI) boom. Those growth anxieties helped bonds rally, as investors continued to reimagine Treasurys not as a risk but rather as a port in a potential storm. That rally came despite oil’s continued climb on the back of heightened geopolitical risks, with Brent crude rising 6.2 percent to $116.72 per barrel, its highest level since late April and just shy of the $118.35 high set on March 31.

Against this backdrop, the S&P 500 Index of large-cap stocks slipped 0.47 percent, its second straight weekly decline. For the second week in a row, AI-related stocks led the way lower, as the Philadelphia Semiconductor Index (SOX) fell 3.21 percent and a Goldman Sachs basket of U.S.-listed companies pursuing AI development across all categories declined by 4.12 percent. Since peaking on June 22, the SOX is now down 26 percent, and the broader AI basket 23 percent, with much of that slide occurring since October 6, which (not so coincidentally) was the day after Treasury yields peaked. We believe that timing is a sign that both markets have begun asking the same question about the durability of AI-driven growth.

Make no mistake; the week’s data continued to highlight a U.S. economy that is pushing forward. S&P Global’s flash Purchasing Managers’ Index (PMI) for October showed the composite reading checking in at a strong 57.6, the second-strongest reading since 2022, behind only last month’s 58.4. Manufacturing posted its highest reading since May 2022, with its employment component reaching the strongest level since March 2012. Across the broader economy, new orders posted their fastest growth in four and a half years, while composite employment rose to its second-highest level in four years.

See more: Griffin May Be Right About AI. The Timing Could Be Very Wrong.