U.S. equities were mixed last week as a narrow group of large technology stocks helped mask growing pressure beneath the surface. The S&P 500 managed a fractional 0.13% gain, while the Dow Jones Industrial Average and Nasdaq Composite both slipped modestly. Breadth was notably weak, with the equal-weight S&P 500 lagging the cap-weighted index by roughly 130 basis points, a sign that the average stock had a tougher week than the headline index suggested. Gains in Nvidia and Amazon provided meaningful index support, but many economically sensitive areas came under pressure as Treasury yields moved sharply higher.

The most important market development last week was the renewed backup in long-term interest rates. The 10-year Treasury yield rose from 4.37% to 4.60%, well above its year-to-date low near 4.0% in early March, while the 30-year Treasury yield moved back above 5%. The move reflected several overlapping concerns: hotter inflation readings, weak Treasury auctions, firmer oil prices, fiscal worries, and a market reassessment of the Federal Reserve’s path. Higher rates are a familiar headwind for equities because they raise borrowing costs for consumers and businesses while also pressuring stock valuations, especially for longer-duration growth assets.

Energy prices added to the pressure. WTI crude rose 10.5% last week and settled back above $100 per barrel as the Iran conflict and Strait of Hormuz uncertainty continued to dominate geopolitical headlines. Higher oil prices feed directly into household budgets through gasoline prices and can work indirectly through transportation, trade services, and broader inflation expectations. The recent inflation data already showed signs of this pressure. April CPI and PPI came in hotter than expected, and fuel-price passthrough into services can occur faster when energy prices rise as sharply as they have in recent months.

As a result, the consumer picture is becoming more complicated. April retail sales rose 0.5%, and the core control group also increased 0.5%, suggesting consumer spending has not yet rolled over. Upward revisions to prior months also supported the view that the economy remains resilient. However, the details deserve caution. Gasoline prices above $4.50 per gallon, higher grocery prices, and negative real wage growth are all pressuring household purchasing power. Higher-income consumers may be better positioned to absorb the shock, but energy and food inflation tend to hit lower- and middle-income households more directly. That helps explain why retail and other consumer discretionary stocks struggled last week even as the headline spending data remained respectable.

Geopolitics remained central to the market narrative. The two-day Trump-Xi summit in Beijing ended without substantive agreements on key issues, though trade negotiators reached what China described as “overall balanced and positive outcomes,” with a framework for reciprocal tariff reductions and the establishment of a new trade council and investment council. On Iran, Xi offered to help broker peace and keep the Strait of Hormuz open to global shipping - a potentially meaningful development given China’s heavy reliance on that corridor for its own energy imports. Still, the summit did not appear to materially change the near-term risk calculus. President Trump’s comments over the weekend that the “clock is ticking” for Iran reinforced the sense that tensions remain elevated and that energy markets are likely to remain sensitive to each new headline.

The policy backdrop is also shifting as Kevin Warsh steps into the Fed Chair role following his confirmation on Wednesday, succeeding Jerome Powell. With inflation pushing back toward 4%, rate cuts appear off the table for now, and futures markets have moved toward pricing the possibility of a hike rather than a cut over the coming year. That may give Warsh an unusual opening: rather than immediately redefining policy through rate changes, he may focus first on process, communication, and how the Fed’s internal decision-making has evolved since his earlier time at the central bank in the 1990s. The April FOMC minutes, due this week, will be watched closely for how broad the support was for removing the Fed’s easing bias and whether more officials want to keep rate hikes explicitly on the table.

Despite these crosscurrents, the AI investment theme remains a powerful source of market support. Cisco’s strong earnings report and sharply higher AI order guidance helped broaden the AI infrastructure narrative beyond semiconductors, while Nvidia’s upcoming earnings report will be the week’s main corporate event. Still, the contrast between resilient AI enthusiasm and weak market breadth is important. A market can continue higher with narrow leadership for a time, but it becomes more vulnerable when rising rates, higher oil prices, and consumer pressure weigh on a broader swath of companies.

Looking ahead, investors will focus on Nvidia earnings, a heavy slate of retail reports from Walmart, Home Depot, Lowe’s, TJX, Target, and others, and Wednesday’s Fed minutes. The key question is whether corporate fundamentals can continue to offset the tightening effect of higher rates and higher energy prices. For now, the economy is still growing and AI-related capital spending remains a meaningful tailwind, but the inflation and rate backdrop has clearly become less forgiving.

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