Persistent elevation in UK inflation to 3.1% in August, combined with sharp rises in energy prices from Middle East supply disruptions, has driven market-implied odds to 92.5% for a 25 basis point Bank Rate increase to 4% at the November 5 meeting. Recent Reuters polling shows 54 of 63 economists now expect this first tightening move since 2023, reflecting revised forecasts for CPI averaging 3.6–3.8% through early 2027. Stronger-than-expected GDP growth and higher government bond yields have reinforced trader consensus that the Monetary Policy Committee will act preemptively to limit second-round effects. A softer October inflation print or sharp reversal in wholesale energy costs ahead of the decision could still shift positioning toward no change.