A worker arc welds a metal door during production at the Metal Manufacturing Co. facility in Sacramento, California, on May 27. (David Paul Morris/Bloomberg/Getty Images via CNN Newsource)

(CNN) โ€”ย High economic uncertainyย has hiringย grinding to a halt at US businesses.

Job growth slowed for the second month in a row at private-sector firms, which added just 37,000 jobs in May, according to new employment estimates released Wednesday by payroll company ADP.

Mayโ€™s job gains, which marked a sharp stepback from the 60,000 jobs added that ADP reported for April, came in significantly below economistsโ€™ expectations for 130,000 jobs to be added.

Itโ€™s the lowest monthly total since March 2023, ADP said.

โ€œThe weak numbers weโ€™re seeing now does not point to a labor market thatโ€™s collapsing, but there is hiring hesitancy,โ€ Nela Richardson, chief economist at ADP, said Wednesday during a call with reporters.

Richardson pegged the loss of hiring momentum toย downbeat consumer sentimentย and trade policy uncertainty.

The bulk of the hiring slowdown came from the goods sector, which lost 2,000 jobs, according to ADPโ€™s report.

US stock futures, which had been rising, dropped after the data release. Dow futures fell 40 points. S&P 500 futures slid 0.1%, and futures tied to the Nasdaq 100 slid 0.2%. All three major indexes moved into the green shortly after the opening bell.

President Donald Trumpโ€™s sweeping policy moves, especially a whipsaw approach to massive import tariffs, haveย left businesses shellshocked, uncertain of input costs and the extent to which these changing policies could rattle consumers.

โ€œItโ€™s like driving through fog for some of our firms here,โ€ Richardson said. โ€œWhen youโ€™re in that situation, you canโ€™t really stop, but you might slow down โ€ฆ when it comes to hiring, thereโ€™s a hesitancy because of a wide level of uncertainty.โ€

And it was the smallest of firms that lost the biggest share of jobs, Richardson noted. Firms with under 50 employees shed 13,000 jobs in May.

โ€œAs goes small business, so goes the economy,โ€ she said. โ€œThis weakness is something that weโ€™re paying close attention to.โ€

Separate dataย released Wednesday by the Federal Reserve Bank of New York showed that some small businesses in New York and New Jersey that were exposed to higher tariffs have taken big hits to their bottom lines. As a result, these firms made modest reductions to their employment levels, and are passing most โ€” and in some cases all โ€” of the tariff-related cost increases to their customers, according to the New York Fed.

Weak, but not collapsing

Despite the stark pullback in hiring, pay growth held up, presenting an encouraging sign of stability within the labor market, she said.

Pay growth for those who stayed at their employer and those who switched jobs was 4.5% and 7%, respectively.

Following the ADP release, Trump took to social media Wednesday morning to ramp up pressure on Federal Reserve Chair Jerome Powell to cut interest rates.

โ€œADP NUMBER OUT!!! โ€œToo Lateโ€ Powell must now LOWER THE RATE. He is unbelievable!!! Europe has lowered NINE TIMES!โ€ Trump wrote in aย Truth Social post.

The European Central Bank has cut the countryโ€™s main interest rateย seven times in the past year.

Central bankers and Powell, whom Trump appointed to helm the Fed starting in 2018, have taken aย cautious approachย to monetary policy in recent months to get a better gauge on how the economic data responds to Trumpโ€™s policies. The Fedโ€™s May policy statement noted that the โ€œrisks of higher unemployment and higher inflation have risen.โ€

When asked about Trumpโ€™s comments, ADPโ€™s Richardson said it highlights the importance of economic data, especially labor market data in assessing what comes next.

โ€œIโ€™ll leave it to the policymakers to decide how this data point fits into their objectives,โ€ she said. โ€œThe labor market isnโ€™t collapsing; wages are robust, but theyโ€™re not triggering inflation; hiring is slow, but itโ€™s not leading to outsized layoffs. So, in that sense, thereโ€™s nothing in the labor market that points in any direction strongly.โ€

ADPโ€™s tabulations donโ€™t always correlate with the official federal jobs report, but itโ€™s sometimes looked to as a proxy for overall hiring and wage growth activity.

The official monthly jobs report from the Department of Labor will be released Friday morning. It is expected to show a slowdown from 177,000 jobs added in April to 130,000 in May.