US inflation accelerates to 3.7% in September

United States inflation accelerated to 3.7% in September, driven by rising costs for gasoline, clothing, and airline tickets, Euronews reported. The consumer price index increased 0.6% on a monthly basis following a 0.4% rise in August, exceeding the 3.6% annual rate anticipated by economists surveyed by FactSet.

Gasoline and Airfare Price Pressures

Gasoline prices jumped approximately 9% between August and September, accounting for a substantial portion of the overall inflation acceleration. National retail gasoline averaged $4.34 per gallon, while higher fuel expenses pushed airline tickets up about 23% compared to the previous year. Transport cost increases for businesses prompted corporate responses, including announcements from PepsiCo regarding planned price increases across snacks and beverages to offset elevated packaging and transit expenses.

The consumer price index stood at 3.7%, slightly above expectations, and likewise core inflation exceeded forecasts, indicating that price increases are transmitting to the rest of the economy.

Richard Carter, Quilter Cheviot

Excluding volatile food and energy items, core prices increased 2.6% on an annual basis in September compared to 2.4% in August, while monthly core inflation remained at 0.3%. Artificial intelligence infrastructure expansion also drove up costs for semiconductors, computer equipment, and electrical components, impacting consumer electronics such as laptops, smartphones, and gaming consoles.

Market and Federal Reserve Reactions

Major US stock indexes shifted into negative territory following the higher-than-expected inflation reports. Gold fell more than 1.7% to $4,105.50 per ounce, while silver dropped over 4% to $56.91 per ounce. International benchmark Brent crude traded just above $105.70 per barrel, and US benchmark WTI rose 1.4% to $95.50 per barrel.

Treasury yields surged as traders increased bets on further monetary tightening by the central bank. The sensitive two-year Treasury yield climbed 13 basis points to 4.93%, and the benchmark ten-year yield advanced roughly eight basis points to approximately 5.3%. Robin Brooks, senior fellow in economic studies at the Brookings Institution and former Goldman Sachs chief economist, stated that an inflation rate moving further away from the Federal Reserve 2% target was the last thing the global bond markets needed.

Midterm Political Fallout

Persistent inflation created political challenges for congressional Republicans ahead of the midterm elections. An Associated Press-NORC Center for Public Affairs Research survey showed that only 17% of US adults approved of President Donald Trump handling of the cost of living, while his overall economic management approval rating dropped to a new low of 26%.

Monetary Policy Decisions on October 27 and 28

The September data intensified pressure on the Federal Reserve ahead of its policy meeting scheduled for October 27 and 28. Last month, central bank officials raised interest rates for the first time in three years to a range between 3.75% and 4%. Federal Reserve President Kevin Warsh asserted during a press conference that inflation remained unacceptably high and had persisted for too long, adding that summer reports failed to demonstrate meaningful improvement in underlying trends.