• U.S. services PMI fell to 56.1 in October, well below the flash estimate of 57.9 and September's 58.8.
  • The composite PMI dropped to 55.9, missing both the preliminary reading and the prior month's level.
  • The downward revisions suggest the economy entered the fourth quarter with less momentum than initially thought, though activity continues to expand.

Cooling Momentum

The U.S. services sector expanded in October but at a markedly slower pace than previously estimated, according to final PMI data released Tuesday. The S&P Global (NYSE:SPGI) services PMI came in at 56.1, down from a flash reading of 57.9 and a September print of 58.8. The composite output index, which combines services and manufacturing activity, fell to 55.9 from 57.6 in the preliminary report and 58.4 the prior month.

A reading above 50 still indicates expansion, so the October figures do not point to a contraction—only a less vigorous start to the fourth quarter. The revisions are substantial: the services gauge was revised down by 1.8 points from the flash estimate, while the composite was cut by 1.7 points. Those downgrades are more than four times the typical flash-to-final adjustment, according to S&P Global data, though they do not necessarily signal a statistical outlier.

Inflation Still a Concern

The flash report had painted a picture of robust demand and accelerating prices. Services new-business growth was the fastest since March 2022, and selling-price inflation hit its highest level since August 2022, driven by fuel, wages, utilities and insurance costs. Those preliminary details may not carry over to the final release, but they highlight the risk that slower activity won't quickly translate into relief on inflation.

"The preliminary readings were consistent with roughly 5% annualized GDP growth at the start of the fourth quarter," said Chris Williamson, chief business economist at S&P Global, in comments tied to the flash report. The final numbers, if sustained, would weaken that assessment, though they don't provide enough information to calculate a new growth estimate.

Market Implications

Bond investors may view the softer data as supportive of lower yields, but persistent inflation could complicate that reaction. The dollar could weaken if markets scale back expectations for Federal Reserve rate hikes. Equities face a mixed picture: lower yields might lift valuations, while slower demand could weigh on earnings expectations. The key distinction is between an orderly cooling and a more troubling slowdown.

The manufacturing sector also saw a downward revision. The final manufacturing PMI came in at 54.9, versus a flash reading of 56.0 and September's 55.9, reinforcing the pattern of weaker-than-initially-reported activity.

What's Next

The next cross-check comes with the ISM services report, due later this week, which is a separate survey from S&P Global's. Investors will watch whether the downward revisions extend to new orders, employment and prices—not just headline activity. For now, the data suggest the U.S. economy remains in expansion mode but with less gusto than previously believed. A spokesperson for S&P Global did not immediately respond to a request for comment.

Correction: An earlier version of this article misstated the historical average absolute flash-to-final difference for the services PMI. It is approximately 0.4 point, not 0.5 point.