US S&P Global Composite PMI Flash (Sep) 58.4 (Prev. 56)

Flashes that pair strong activity with surging input costs attributed to energy have historically been read as a stagflationary mix: the growth component argues against cuts while the cost component argues against easing, and in past episodes of this kind the front end has tended to cheapen as the inflation read dominates. The distinction worth drawing is between energy-driven cost pressure, which central banks have typically looked through unless it bleeds into core, and broad-based demand-pull inflation, which feeds more directly into the policy reaction function. The standard follow-on is the ISM prints later in the week and the final PMI revisions, which have on previous occasions softened the flash estimate; the prices-paid sub-indices in the ISM are the tell for whether the cost spike is sector-specific or spreading. Worth noting is whether the output and employment components corroborate the composite strength, since a composite inflated by supplier delivery times and prices rather than new orders has historically been treated as weaker evidence of genuine momentum.