The ISM Services PMI fell to 54.9 in September 2026 from 55.4 in August, compared with expectations of 55. The index nevertheless remained in expansion territory for a 27th consecutive month, indicating continued growth in the US services sector. Business activity eased more noticeably, with the Business Activity Index dropping to 56.5 from 61.7, while new orders also moderated to 59.8. Employment improved, moving back above the 50 threshold to 50.1 after two months of contraction. Supplier deliveries slowed, with the corresponding index rising to 53.2, while backlogs strengthened to 56.6, their highest level since July 2022. Price pressures remained a major concern, with the Prices Index climbing to 74, its highest since July 2022 and above 70 for the sixth time in seven months. Export orders weakened sharply, falling below 50 for the first time in eight months. Tariffs, fuel costs and supply-chain constraints remained key concerns for businesses.