Recent softer-than-expected August core PCE data, which printed at 0.2% month-over-month against 0.3% consensus and helped push the year-over-year rate to a revised 3.0%, has anchored trader expectations for September around the closely matched 0.2% and 0.3% outcomes. Persistent above-target inflation, resilient consumer spending, and potential volatility in services prices or goods components create a narrow contest between these levels. Market-implied odds reflect aggregated capital at risk on these probabilities ahead of the late-October release, with limited scope for sharper deviations given recent trends and methodology revisions that tempered prior readings.