Recent September ISM Manufacturing PMI data at 54.5, slightly below consensus and down 0.1 point from August, anchors trader expectations for October amid nine straight months of expansion above the 50 threshold. Sustained new orders growth to 55.3 and employment gains to 52.7 support resilience, yet surging prices paid at 77.9—driven by tariffs on steel and aluminum plus Middle East supply disruptions—highlight persistent cost pressures that could cap upside. Market-implied odds cluster around 52.0-54.9 ranges, reflecting uncertainty over whether moderating production and inventory contraction will offset demand strength ahead of the November 2 release. Broader labor market and Fed communications remain key swing factors for the final reading.