**Trader consensus on the Polymarket "October Inflation US - Annual" market heavily favors a 3.7% year-over-year CPI print at 92.5% implied probability.** This positioning reflects September’s actual 3.7% YoY outcome and expectations for a modest 0.2–0.3% monthly increase in October, supported by slower gasoline price gains after the prior month’s surge, cooling used-vehicle prices, and steady shelter costs. Core CPI trends and the Cleveland Fed nowcast reinforce the view that annual inflation will hold near the latest reading despite elevated energy levels. The November 10 release remains the key catalyst, though a government shutdown last year means the BLS may withhold the official YoY figure. Scenarios that could shift odds include an unexpected energy rebound or firmer core services inflation that pushes the effective rate to 3.8% or higher.