US stocks jump after an encouraging inflation update, as Micron helps AI stocks stop their slide

Some relief came from a report showing that inflation was less bad last month than economists expected. That could soothe nerves at the Fed, which is responsible for keeping inflation low and for keeping the job market strong.

Inflation is still higher than anyone would like, at 2.7% last month, but if it creeps closer to the Fed’s target of 2%, Fed officials could feel more free to cut interest rates to help a slowing job market. Wall Street loves lower interest rates because they can boost the economy and prices for investments, even if they may also worsen inflation.

To be sure, some along Wall Street said Thursday’s inflation update may not move the needle much at the Fed given how noisy economic reports have been following the U.S. government’s earlier shutdown. Next month’s update on inflation could provide a better gauge of what’s actually happening. But a better-than-expected report on inflation is nevertheless better than the alternative.

Also helping to drive the U.S. stock market was Micron Technology, the seller of memory and storage for computers, which rallied 12.3% after reporting stronger profit and revenue for the latest quarter than analysts expected. CEO Sanjay Mehrotra said each of the company’s business units enjoyed stronger revenue and made more in profit off each $1 of that revenue.

Micron also gave encouraging forecasts for upcoming financial results, and Mehrotra credited its position as an “AI enabler,” among other things.

Billions of dollars are flowing into artificial-intelligence technology, which helped superstar stocks like Nvidia lead the market for years.

But questions are rising about whether those stock prices shot too high and whether customers will get a good-enough return on AI investments through bigger profits and productivity. Worries are also weighing on companies that are borrowing lots of money to pay for AI investments.

Oracle and Broadcom have been at the center of such worries recently, and their stock prices have been falling sharply since last week despite both reporting better profits for the latest quarter than analysts expected. On Thursday, Oracle rose 2.1%, and Broadcom added 0.3%.

Nvidia, the chip company that’s become Wall Street’s most influential because of its immense size, gained 2.7%.

Another winner was Trump Media & Technology Group, which jumped 34% to carve into some of its steep loss for the year so far, 69.3% coming into the day. The company, which began with President Donald Trump’s Truth Social platform and then moved into cryptocurrencies and various other lines of business, is now moving into nuclear power.

It’s merging with TAE Technologies in an all-stock deal, and each company will own roughy half of the combined business. The companies said the deal would pair TMTG’s ability to raise significant money by attracting investors with TAE’s technology. They hope to get TAE’s nuclear-fusion reactors, which would create power in a similar way as the sun does, running commercially.

Cintas rose 0.9% after the provider of work uniforms and cleaning supplies reported stronger profit for the latest quarter than analysts expected, while also announcing a program to send up to $1 billion to shareholders by buying back its own stock.

Darden Restaurants, the company behind Olive Garden and LongHorn Steakhouse, rose 0.9% even though its profit for the latest quarter fell short of analysts’ expectations. Its growth in revenue topped forecasts, benefiting from both the opening of new restaurants and increased revenue at its older locations.

CarMax swung sharply between gains and losses and was most recently down 0.7%. The auto retailer reported a stronger profit for the latest quarter than analysts expected. But it also said it may make less profit from each $1 of revenue in sales of used autos during the current quarter, as it tries to get more competitive in the market. It also plans to increase spending on marketing to drive customers to lots.

In stock markets abroad, indexes rose 0.3% in London, 0.5% in France and 0.5% in Germany after the Bank of England cut its key interest rate and the European Central Bank kept its steady.

Asian indexes were mixed, with stocks falling 1.5% in South Korea but adding 0.2% in Shanghai.

In the bond market, Treasury yields sank following the encouraging report on U.S. inflation.

The yield on the 10-year Treasury fell to 4.11% from 4.16% late Wednesday.

AP Business Writers Matt Ott and Elaine Kurtenbach contributed.