S&P, Nasdaq notch records on AI optimism

U.S. stocks are back at records, and the reason is pretty specific. Investors keep rewarding the companies tied most directly to the AI buildout — chips, memory, storage, and the infrastructure around data centers. On Friday, May 8, that was enough to push the S&P 500 and the Nasdaq to fresh all-time closing highs, even with oil above $100 and the Federal Reserve still in no-rush mode. (money.usnews.com) ### What actually moved the market? (money.usnews.com) The immediate driver was another burst higher in AI-linked tech names. Nvidia rose 1.8%, and memory and storage names Micron Technology and Sandisk each surged more than 15% as traders leaned into demand from fast-growing AI data-center spending. That helped lift the Nasdaq 1.71% to 26,247.08 and the S&P 500 0.84% to 7,398.93. ### Why those stocks? Because AI is no longer just a software story. It is a hardware and plumbing story too. Training and running large models takes huge amounts of compute, memory, networking, and storage, so the market is now rewarding the companies that sell the picks and shovels. That is why storage and memory names can rip alongside Nvidia — they sit inside the same data-center spending wave. (money.usnews.com) ### Was this just a one-day pop? Not really. The records on Friday capped the sixth straight weekly gain for both the S&P 500 and the Nasdaq — the longest such streak since October 2024. The Nasdaq is now up 13% in 2026, while the S&P 500 is up 8%. So this was less a surprise spike and more an extension of a very persistent trend. (money.usnews.com) ### Are earnings backing this up? For now, yes. First-quarter S&P 500 earnings growth is tracking near 28% to 29% year over year, which is far stronger than analysts expected a month earlier and would be the best growth rate since late 2021. More than 80% of reporting companies had beaten profit estimates by early May. Basically, the market is not floating on vibes alone — profits have shown up. (money.usnews.com) ### So why isn’t everyone relaxed? Because the rally is strong, but it is still concentrated. Reuters’ market recap tied a lot of that earnings acceleration to AI-heavyweights, and FactSet’s broader earnings tracker shows the full index growing a bit slower than the punchier 29% figure circulating in daily market coverage. (money.usnews.com) That gap matters. It suggests the same old question is still hanging over this rally — how much of the boom belongs to the whole market, and how much belongs to a relatively small set of winners? ### What about rates and the economy? Friday’s jobs data actually helped the bullish case, even though it also argued against rate cuts. U.S. employment growth came in stronger than expected for April, unemployment held at 4.3%, and traders kept expecting the Fed to stay put through year-end. (money.usnews.com) Turns out stocks could live with higher-for-longer rates as long as growth and earnings stayed solid. ### Why didn’t oil kill the rally? That is the interesting part. Brent crude moved above $100 a barrel, which would normally scare investors because higher energy prices can reignite inflation. But the market looked through it. Strong earnings and AI enthusiasm were powerful enough to outweigh the inflation worry, at least for now. (money.usnews.com) Defensive sectors lagged while tech led — a pretty clean sign of what investors wanted exposure to. ### What is the bottom line? The market is making a clear bet. AI spending is real, earnings are strong, and the companies supplying the infrastructure are still the main beneficiaries. But the catch is concentration — if AI profits broaden out, this rally looks durable. (money.usnews.com) If they do not, records can still happen, but they start to look narrower and more fragile.