Recent September ISM Services PMI data at 54.9, down 0.5 points from August’s 55.4 and slightly below consensus, anchors trader expectations for the October reading near 54–56 amid sustained services expansion for 27 straight months. Elevated input costs remain the dominant theme, with the Prices Index climbing to a four-year high of 74.0 on fuel, tariffs, and supply-chain strains tied to Middle East developments and import duties. New orders eased modestly to 59.8 while business activity fell to 56.5, yet employment crossed back above 50 at 50.1 and order backlogs hit their highest level since mid-2022. These mixed signals—resilient domestic demand offset by cost pressures and softer labor trends—produce closely matched probabilities across the 53–56 brackets ahead of the November 4 release.