Markets mixed as AI rallies in April

Stocks had a great April. The economy, not so much. That’s the basic tension sitting under markets right now. Investors pushed the S&P 500 and Nasdaq to fresh highs on the back of AI spending and better-than-feared earnings, but the macro backdrop kept flashing warning signs — hotter energy, stickier inflation, softer growth, and a war shock still running through oil and trade routes. ### Why did markets feel so mixed? Because different parts of the market were reacting to different realities. Equities mostly cared about earnings and AI demand. Bonds and macro investors cared more about inflation risk, fiscal strain, and what happens when oil stays elevated. April ended up looking strong on the surface, but underneath it was a narrow, tech-heavy rally rather than a clean all-clear for the whole economy. ### What actually drove the rally? AI did — pretty directly. J.P. Morgan Asset Management’s April review says global equities rallied on a decisive rotation back into AI stocks, with the Philadelphia Semiconductor Index up close to 40% in the month. Taiwan and South Korea, which sit deep in the AI chip supply chain, were standout winners. In the U.S., the S&P 500 returned 10.5% in April, helped by strong results from tech and financial companies. ### Why didn’t that calm everyone down? Because oil was doing the opposite. The Strait of Hormuz remained badly disrupted through April, and Brent crude moved above $110 by month-end. That matters far beyond energy stocks. Higher oil feeds straight into transport, manufacturing, airline costs, and eventually consumer prices. It’s like the market had one foot on the AI accelerator and one foot on an inflation rake. ### Where does the softer growth story come in? The IMF’s April 2026 outlook is the clearest version of it. Global growth is projected at 3.1% for 2026, with headline inflation expected to rise modestly this year before easing again in 2027. The fund’s point is simple — war in the Middle East is hitting growth and disinflation at the same time. That’s a nasty combo for policymakers because it makes rate cuts harder just when activity is slowing. ### Why are people talking about capital flows? Because money is starting to cluster around the parts of the market that still look structurally strong. At the Milken conference this week, executives from Blackstone, Apollo, State Street, Carlyle, and Mubadala talked about geopolitical realignment, private credit, and AI’s economic impact. One of the clearest takeaways was that AI is being treated less like a theme trade and more like a magnet for capital. ### What does Spirit Airlines have to do with this? It’s a good example of how uneven this environment is. Spirit said on May 2 that it had begun an orderly wind-down and canceled all flights, blaming a sudden and sustained rise in fuel prices along with broader financial pressure. So while hyperscalers and chip names are absorbing huge investor demand, fuel-sensitive businesses at the other end of the economy are getting crushed. ### So is this a healthy bull market? Healthy is too strong. Resilient, yes. Broad, no. The earnings season has been strong — J.P. Morgan notes 84% of reporting companies beat consensus expectations — but the rally is still heavily tied to AI infrastructure, semiconductor demand, and a handful of very large companies. That can keep working, but it also means any disappointment in AI spending or margins would matter a lot more than usual. ### What’s the bottom line? April showed that markets can rally hard even while the macro picture gets messier. But turns out that kind of strength is selective. Right now, investors are paying up for AI-linked growth and mostly looking through war, oil, and inflation risk. The catch is that those risks never really left — they’re just being outshouted by the winners.