Diverging monetary policies amid elevated energy prices from geopolitical tensions are the dominant force shaping GBP/USD sentiment into late 2026. The Federal Reserve’s recent 25-basis-point hike to a 3.75–4.00% target range, backed by resilient U.S. growth and September CPI expected near 3.6%, has reinforced dollar strength, while the Bank of England holds Bank Rate at 3.75% despite market pricing of near-certain November tightening and further moves. Persistent inflation above 3% in both economies, driven by oil above $100 and higher gilt yields, alongside the IMF’s upgrade of UK GDP growth to 1.3% for 2026, creates offsetting pressures. Traders will focus on today’s U.S. CPI print, the October 28 UK Budget, and upcoming BoE and FOMC decisions for clarity on rate paths and relative yields.