NEW YORK — U.S. stocks fell sharply Friday after reports showed that worries among consumers and businesses about President Donald Trump’s policies may be hitting the U.S. economy.

The S&P 500 sank 1.7% for its worst day in two months. The Dow Jones Industrial Average dropped 748 points, or 1.7%, and the Nasdaq composite tumbled 2.2%.

The losses accelerated through the day following several weaker-than-expected reports on the economy. One suggested U.S. business activity is close to stalling, with growth slowing to a 17-month low. The preliminary report from S&P Global said activity unexpectedly shrank for U.S. services businesses, and many in the survey reported slumping optimism because of worries about Washington.

“Companies report widespread concerns about the impact of federal government policies, ranging from spending cuts to tariffs and geopolitical developments,” said Chris Williamson, chief business economist at S&P Global Market Intelligence. “Sales are reportedly being hit by the uncertainty caused by the changing political landscape, and prices are rising amid tariff-related price hikes from suppliers.”

A separate report said U.S. consumers are also preparing for higher inflation, in part because of potential tariffs that could raise prices for all kinds of imports. They’re broadly expecting prices to be 4.3% higher 12 months from now, which is a big jump from their forecast of 3.3% inflation last month, according to a survey by the University of Michigan. That fits with preliminary data in the survey earlier this month.

Among U.S. households, though, a divide is evident underneath the surface. Expectations for inflation are rising for political independents and Democrats, while falling slightly for Republicans.

A third economic report, meanwhile, said sales of previously occupied homes were weaker last month than economists expected. Relatively high mortgage rates, along with expensive prices for homes, have been hurting sales.

To be sure, the U.S. stock market is still up for the young year so far and is not far from its all-time high set earlier this week. Virtually no one on Wall Street is forecasting a recession anytime soon. But Friday’s reports raise concerns about what’s been a remarkably resilient economy, and the losses on Wall Street were widespread.

Stocks of the smallest companies, whose profits can be more closely tied to the strength of the U.S. economy than big multinational rivals, fell more than the rest of the market. The Russell 2000 index of small stocks dropped a market-leading 2.9%.

Within the big companies of the S&P 500 index, 3 out of every 4 stocks fell. Everything from Big Tech stocks that have been bid up amid the artificial-intelligence frenzy to airlines to metals companies dropped. Nvidia sank 4.1%. United Airlines lost 6.4%, and Newmont Mining fell 5.7%.

Akamai Technologies had the sharpest drop in the S&P 500, even though the cybersecurity and cloud computing company reported stronger profit for the latest quarter than analysts expected. It lost a fifth of its value and fell 21.7% as investors focused instead on its forecasts for revenue and other financial measures this upcoming year, which fell short of analysts’ expectations.