While factory output grabs headlines, America's economic fate rests on offices, hospitals, and warehouses that make up 70 percent of GDP. The ISM Services PMI has emerged as the critical gauge for tracking whether post-pandemic momentum can survive higher material costs and tariff uncertainty. Recent months reveal a pattern investors can't ignore: industrial reshoring and infrastructure spending boost order books, yet margin pressures from input inflation suggest the expansion may be running out of steam faster than manufacturing metrics alone would indicate.

The ISM Services PMI has become one of the most closely watched macroeconomic indicators in recent years, as services account for approximately 70 percent of the U.S. economy. While manufacturing may be taking a lot of media attention, the real pulse of the U.S. economy beats in offices, restaurants, medical facilities and logistics centers. And it is the health of these sectors that the ISM Services PMI measures each month with…