Market-implied odds for the October 2026 U.S. CPI show a tight contest between a 0.3% monthly gain (43.0%) and 0.2% (38.5%), reflecting uncertainty following September’s 0.6% headline surge driven by a 9.1% gasoline spike. Traders price in moderation from slower energy price increases, softer used-vehicle and apparel prices, and partial shelter cooling, though persistent services inflation and wage trends could support a firmer core reading near 0.2–0.3%. The closely matched outcomes underscore sensitivity to final gasoline seasonal adjustments and shelter data, with the November 10 release serving as the immediate catalyst amid ongoing Fed policy deliberations.