Key facts
- Annual US inflation rose to 4.2% in May, the highest in three years.
- Energy prices, particularly gasoline, were the main drivers of the inflation increase.
- Core inflation, excluding food and energy, rose 2.9% year-on-year.
- The Federal Reserve is expected to keep interest rates unchanged into 2027.
- US Treasury yields rose following the inflation data.
- The U.S. dollar weakened due to geopolitical concerns and inflation data.
U.S. annual inflation accelerated to 4.2% in May, the highest in three years, primarily driven by a significant jump in energy prices amid the ongoing Middle East conflict. This surge, accounting for over 60% of the monthly CPI increase, has fueled concerns about mounting pressure on households and eroded wages for a second consecutive month.
The Consumer Price Index (CPI) rose 0.5% in May from April, following a 0.6% increase the previous month. Gasoline prices saw a substantial 7.0% monthly increase, contributing to an annual jump of 40.5%. While core inflation, excluding volatile food and energy components, rose a more moderate 2.9% year-on-year, the overall inflation trend is well above the Federal Reserve's 2% target.
The inflation data has led financial markets to price in a continued pause in interest rate hikes, with expectations now leaning towards rates remaining unchanged into 2027. U.S. Treasury yields rose following the report, reflecting market adjustments to the persistent inflationary pressures. The Federal Reserve closely monitors the Personal Consumption Expenditures Price Indexes, and estimates suggest PCE inflation also increased by 0.4% in May, matching April's gain and resulting in a 4.0% annual increase.
Rising living costs present a political challenge for President Donald Trump and the Republican Party. Trump commented on the inflation, stating it would decrease once the U.S.-led conflict with Iran concludes. The U.S. dollar weakened as new U.S. strikes in the Middle East undermined sentiment. Economists suggest that if energy prices do not moderate soon, further spillover effects into other goods and services are likely, potentially keeping future rate hikes on the table.