The Institute for Supply Management (ISM) is set to release the May Services Purchasing Managers Index (PMI) on Wednesday, with market consensus forecasting a slight increase to 53.8 from April's 53.6 reading [1]. The ISM Services PMI is a widely watched indicator of the US services sector's health, with values above 50 signaling expansion. April's report marked the 22nd consecutive month of expansion in the sector, though the pace has slowed from March's 54.0 [1].
Key sub-indexes from the April report highlight ongoing challenges. The Employment Index remained in contraction for the second consecutive month, registering 48 in April, up from 45.2 in March but still below its 12-month average of 48.6 [1]. Meanwhile, the Prices Paid Index, closely tied to inflation, held steady at 70.7 in April, pushing its 12-month average to 67.7—the highest since May 2023 [1]. ISM respondents noted that petroleum price increases have yet to fully impact petroleum-related products, suggesting that elevated price readings may persist for several months as these costs filter through global supply chains [1].
These inflationary pressures are reflected in the broader economy. The Personal Consumption Expenditures (PCE) Price Index, the Federal Reserve's preferred inflation measure, rose to 3.8% year-over-year in April from 3.5% in March, while the core PCE index increased 3.3%, both in line with expectations [1]. The persistent inflation, nearly double the Fed's 2% target, has led to market speculation about potential interest rate hikes later in the year, despite President Trump's appointment of Kevin Warsh as the new Fed Chair with the aim of pursuing lower rates [1]. Ongoing geopolitical tensions, specifically the war in Iran, are also cited as contributing to renewed inflationary pressures, complicating the Fed's policy outlook [1].
Looking ahead, the employment sub-component of the ISM report will be closely watched, especially with the May Nonfarm Payrolls (NFP) report due on Friday [1]. The ISM data is expected to provide early signals on labor market trends and inflation, both of which are critical for shaping the Federal Reserve's next policy moves [1].
CONCLUSION
The upcoming ISM Services PMI is expected to show modest improvement, but persistent inflation and weak employment data continue to cloud the outlook for US monetary policy. With inflation running well above target and geopolitical risks ongoing, markets are increasingly focused on the Fed's response, including the possibility of rate hikes later in the year.