Market resolves to YES if the Office for National Statistics CPI 12-month rate for August 2026, published in the ONS Consumer Price Inflation bulletin on 16 September 2026, is strictly above 2.9%. July 2026 CPI was 2.9%. A reading of exactly 2.9% resolves NO. Resolution uses the headline CPI figure published at 7am. Source: ONS Consumer Price Inflation bulletin (ons.gov.uk/economy/inflationandpriceindices).