Recent August CPI data showed a 0.4% seasonally adjusted monthly rise in headline prices and 0.3% in core, driven largely by a 3.9% gasoline increase amid elevated energy costs from geopolitical supply pressures. This outcome aligned with consensus yet reinforced trader focus on whether September's reading will moderate toward 0.4% or hold firmer near 0.5%, given persistent shelter costs, potential tariff pass-through, and rebounding energy components. Cleveland Fed nowcasts point to roughly 0.37% headline growth, while broader economic resilience and upcoming FOMC deliberations keep core inflation expectations anchored above target. The tight 33%–32% split between the leading outcomes underscores uncertainty over volatile energy and goods prices versus steady disinflation in services.