U.S. wholesale prices saw their highest annual increase in more than three years in April, indicating that inflationary pressures are becoming more intractable and persistent amid continued increases in supply chain costs.

Data released by the U.S. Bureau of Labor Statistics on Wednesday showed that the seasonally adjusted Producer Price Index (PPI) rose 1.4% month-over-month in April, significantly higher than the average forecast of 0.5% by Dow Jones economists and also higher than the revised 0.7% in March. This was the largest monthly increase since March 2022. Year-over-year, the PPI rose 6% in April, the highest annual increase since December 2022.

Key metrics accelerate simultaneously

The core PPI, excluding food and energy, rose 1% month-on-month, significantly higher than the market expectation of 0.4%. If food, energy, and trade services are further excluded, the PPI still rose 0.6% month-on-month. These figures collectively indicate that upward price pressures have spread widely, rather than being limited to specific sectors.

Energy prices are the main driver

Energy prices were the core driver of this unexpected surge in producer prices. The U.S. Bureau of Labor Statistics indicated that about three-quarters of the commodity price increase came from a 7.8% jump in final demand energy prices, with over 40% of that contribution attributed to a 15.6% surge in gasoline prices. Gasoline prices at U.S. gas stations significantly exceeded $4 per gallon that month, primarily due to the impact of the conflict with Iran on the entire energy market.

While energy prices are the primary driver, price pressures have clearly extended beyond gas stations. The services price index accelerated its monthly increase to 1.2%, also marking the largest monthly rise since March 2022. Two-thirds of this increase came from a 2.7% rise in traded services prices, indicating that the costs of tariffs implemented by the Trump administration a year ago are beginning to have a more significant impact on prices. Furthermore, a 3.5% jump in wholesale profit margins for machinery and equipment further supported the rise in services prices.

Experts warn of structural inflation risks

David Russell, Global Head of Market Strategy at TradeStation, said: “Inflation is sticky and accelerating. Core data confirms deeper structural trends, particularly in the services sector. The Hormuz crisis exacerbated the problem, but inflationary pressures extend far beyond oil.”

Market reaction and the Fed's outlook

Following the data release, Dow Jones Industrial Average futures fell, while Treasury yields rose slightly. The report came a day after the Bureau of Labor Statistics reported a 3.8% year-on-year increase in the Consumer Price Index (CPI), also primarily driven by energy prices, while other sub-items such as housing costs also saw unexpected increases. Core inflation was 2.8% year-on-year, relatively moderate, but still well above the Federal Reserve's 2% target.

Under the current circumstances, market pricing indicates that the likelihood of a Federal Reserve rate cut for the remainder of the year is extremely low, while the probability of a rate hike rose to approximately 39% after the release of PPI data. Due to persistently sticky inflation and a resilient labor market, the Federal Reserve has maintained its benchmark interest rate in the 3.5%-3.75% range.

Overall , the April PPI data once again highlights the complexity and persistence of the US inflation problem. Under the dual pressures of the energy crisis and tariff policies, the Federal Reserve faces increased difficulty in balancing economic growth and price stability. Maintaining the current interest rate level and closely monitoring subsequent data developments will likely be the preferred option in the short term.