Recent August CPI data at 3.4% year-over-year, with core inflation at 2.4%, has anchored trader expectations for September amid elevated gasoline prices and broader energy pressures that added 0.4% monthly to headline readings. Rising consumer inflation expectations to 4.6% for the year ahead, driven by fuel costs and trade tensions, have introduced upside risks, while Cleveland Fed nowcasts hover near 3.43%. The closely matched probabilities around 3.5% and 3.6% reflect uncertainty over whether shelter moderation and base effects will offset these factors ahead of the October 14 release. Market-implied odds capture aggregated positioning on the balance between persistent energy-driven inflation and underlying disinflationary trends in goods and services.