Most US stocks rose Tuesday following an encouraging report that showed inflation unexpectedly slowed across the country last month.

The S&P 500 climbed 0.7 per cent, coming off an even bigger gain to start the week after the US and China announced a 90-day pause in their trade war to allow for negotiations.

The Dow Jones Industrial Average fell 269 points, or 0.6 per cent, and the Nasdaq composite jumped 1.6 per cent as AI and other tech stocks led the way.

Stocks have been roaring back since the S&P 500 fell nearly 20 per cent below its record last month on hopes that US President Donald Trump will ease his stiff tariffs on trading partners worldwide before they create a recession and send inflation spiking higher.

The S&P 500, which sits at the center of many 401(k) accounts, is back within 4.2 per cent of its all-time high set in February and positive again for the year so far.

Tuesday’s report said that even with all the uncertainty around trade, and even with many businesses rushing to import products from other countries before tariffs raise their prices, inflation slowed to 2.3 per cent last month from 2.4 per cent in March.

It’s encouraging because such data pulls the economy further from a worst-case scenario called “stagflation,” one where the economy stagnates but inflation remains high. The Federal Reserve has no good way to fix that toxic combination. It could try to lower rates to help the economy, for example, but that would likely worsen inflation in the short term.

Even with Tuesday’s encouraging report, though, economists and analysts say inflation may still run higher in coming months because of Trump’s tariffs. That will likely leave the Fed waiting for more data to guide their decision on whether and when to cut interest rates in order to help the economy.

It’s similar to the wait that investors in general are enduring. With the Fed set to make no moves on interest rates for the time being, markets will likely trade “with negotiation and reconciliation headlines,” according to Alexandra Wilson-Elizondo, global co-head and co-chief investment officer of multi-asset solutions within Goldman Sachs Asset Management.

“I think investors are aware that the trade deal is not done yet,” said Louis Wong, director for Phillip Securities Group in Hong Kong.

“I would advise investors to remain cautious in the near term and to be prepared for unexpected news from the trade front,” he added.

On Wall Street, Coinbase Global jumped 24 per cent after the cryptocurrency exchange learned its stock will join the widely followed S&P 500 index next week. That means many investment funds will likewise add it before trading begins on Monday.

Coinbase will replace Discover Financial Services, which is getting bought by Capital One Financial.

Stocks in the artificial-intelligence industry were also strong. Nvidia rose 5.6 per cent and was the biggest single force pushing upward on the S&P 500. It’s partnering with Saudi Arabia’s sovereign wealth fund-owned AI startup Humain to ship 18,000 chips to the Middle Eastern nation to help power a new data center project.

Super Micro Computer, which builds servers used in AI, jumped 16 per cent. GE Vernova, which is hoping to power vast AI data centers, rose 4%. Palantir Technologies gained 8.1 per cent.

They helped offset UnitedHealth Group, whose shares tumbled 17.8 per cent after it suspended its full-year financial forecast due to higher-than-expected medical costs. The nation’s largest health insurer also announced that CEO Andrew Witty was stepping down for personal reasons and that Chairman Stephen Hemsley will become CEO, effective immediately.

UnitedHealth was the main reason the Dow lagged behind other U.S. stock indexes.

All told, the S&P 500 rose 42.36 points to 5886.55. The Dow Jones Industrial Average fell 269.67 to 42,140.43, and the Nasdaq composite climbed 301.74 to 19,010.08.

In the bond market, Treasury yields ticked higher with hopes for the US economy. The yield on the 10-year Treasury rose to 4.48 per cent from 4.45 per cent late Monday.

The two-year Treasury yield, which moves more closely with expectations for Fed action, ticked up to 4.01 per cent from 3.98 per cent.

In stock markets abroad, indexes rose across much of Europe and Asia. Stocks fell 1.9 per cent in Hong Kong but rose 1.4 per cent in Tokyo.

Automakers were among the big gainers in Japan. Nissan Motor Co. added 3 per cent ahead of an announcement that it plans to lay off 20,000 of its workers as part of its restructuring efforts. The automaker said Tuesday that it racked up a loss of 670.9 billion yen ($7.03 billion) in the last fiscal year.