Recent August CPI data showing a 3.4% year-over-year headline rate and hotter-than-expected 0.3% core monthly gain, combined with sharp energy price increases from Middle East supply disruptions, anchor trader focus on September annual inflation outcomes clustered between 3.4% and 3.6%. Elevated consumer inflation expectations at 4.6% and pipeline pressures from producer prices reinforce the case for sticky readings above the Fed’s 2% target. The closely matched probabilities reflect uncertainty over whether shelter moderation and potential energy stabilization will offset these factors ahead of the October 14 release. Market-implied odds embed the latest labor market and monetary policy signals without assuming a specific path.