Recent August ISM Services PMI strength at 55.4, exceeding the 54.3 consensus and July’s 54.1, has shaped trader positioning for the September release by highlighting resilient demand signals such as business activity at 61.7 and new orders at 60.9. Offsetting factors include persistent employment contraction at 47.8, elevated prices paid at 72.6 amid tariff and energy cost pressures, and the index’s proximity to its 12-month average near 53.7. Market-implied odds cluster tightly around the 53–55 range because participants weigh summer seasonality and backlog growth against cautious hiring trends and potential mean reversion, with the early-October print serving as the key catalyst to resolve these dynamics.