September PMI Signals Manufacturing Growth Amid Pricing Pressures

The Institute for Supply Management's September PMI came in at 54.5, maintaining the ninth consecutive month of US manufacturing expansion and signaling approximately 2.4% GDP growth. However, the data masks significant headwinds facing supply chain professionals, including elevated diesel costs, tariff-related input inflation, and mounting pricing pressures. The New Orders Index rose to 55.4, indicating continued industrial demand, yet positive sentiment among executives declined notably, suggesting cautious optimism. For logistics professionals, this data carries critical implications.

The industrial sector generates roughly two-thirds of LTL (less-than-truckload) revenue, and ISM readings typically lead LTL market inflections by approximately three months. LTL rates have climbed nearly 8% year-over-year through September 2024, with carriers implementing general rate increases and reporting accelerating tonnage growth in Q3. Simultaneously, the Price Index surged to 77.9, with 58.6% of surveyed executives reporting higher prices and raw material costs rising for the 24th consecutive month. Supply chain leaders must navigate a complex environment where demand remains robust but cost pressures are intensifying.

The lean inventory levels at 41.6 suggest manufacturers are cautious about restocking, likely constrained by elevated interest rates and input inflation. This dynamic creates both opportunities for carriers capitalizing on volume growth and risks for shippers facing persistent rate increases and potential service-level pressures as pricing gains may outpace demand growth.