NEW YORK — U.S. stock indexes rose to more records Wednesday after tech companies talked up how much of a boost they’re getting from the artificial-intelligence boom.

The S&P 500 climbed 0.6% to add to what’s set to be one of its best years of the millennium. It’s the 56th time the index has hit an all-time high this year after climbing in 11 of the last 12 days.

The Dow Jones Industrial Average rose 308 points, or 0.7%, while the Nasdaq composite added 1.3% to its own record.

Salesforce helped pull the market higher after delivering stronger revenue for the latest quarter than analysts expected, though its profit fell just short.

CEO Mark Benioff highlighted the company’s artificial-intelligence offering for customers, saying “the rise of autonomous AI agents is revolutionizing global labor, reshaping how industries operate and scale.” The stock price of the company, which helps businesses manage their customers, jumped 11%.

Marvell Technology leaped even more after delivering better results than expected, up 23.2%. CEO Matt Murphy said the semiconductor supplier is seeing strong demand from AI and gave a forecast for profit in the upcoming quarter that topped analysts’ expectations.

All the optimistic talk helped Nvidia, the company whose chips are powering much of the move into AI, rally 3.5%. It was the strongest force pushing upward on the S&P 500 by far.

They helped offset an 8.9% drop for Foot Locker, which reported profit and revenue that fell short of analysts’ expectations.

CEO Mary Dillon said the company is taking a more cautious view, and it cut its forecasts for sales and profit this year. Dillon pointed to how keen customers are for discounts and how soft demand has been outside of Thanksgiving week and other key selling periods.

Retailers overall have offered mixed signals about how resilient U.S. shoppers can remain. Their spending has been one of the main reasons the U.S. economy has avoided a recession that earlier seemed inevitable after the Federal Reserve hiked interest rates to crush inflation. But shoppers are now contending with still-high prices and a slowing job market.

This week’s highlight for Wall Street will be Friday’s jobs report from the U.S. government, which will show how many people employers hired and fired last month.