Recent September core CPI data surprised to the upside at 0.33% MoM, lifting year-over-year core to 2.6% amid broad-based gains in shelter (OER surge), supercore services, and core goods. This has tempered trader expectations for swift cooling ahead of the October reading, producing closely matched implied probabilities for a 0.2% or 0.3% MoM outcome. Analyst forecasts, including TD Securities at 0.21%, anticipate moderation from mean-reverting services inflation, softer used-vehicle and apparel prices, and shelter deceleration, though energy-price pass-through and sticky goods inflation create upside risks. The October 28 FOMC meeting and November 10 CPI release remain key near-term catalysts that could shift the distribution.