The FTSE 100 rose 0.3% on Friday, tracking a broader European rally after Federal Reserve Chair Kevin Warsh adopted a cautious stance on inflation at the Jackson Hole symposium. Warsh said recent PCE and CPI data were encouraging but did not yet show decisive improvement in underlying inflation, increasing market pricing for a September rate hike and reinforcing expectations that U.S. monetary policy may remain restrictive. HSBC and Standard Chartered each gained about 1.7%, while Barclays and Lloyds Banking Group also advanced. Utilities added support, led by SSE’s 2.6% rise, with Severn Trent, Centrica and National Grid also moving higher. Shell edged up, while defense companies BAE Systems and Babcock International fell sharply. The advance was not enough to prevent the FTSE 100 from ending August down about 0.5%, breaking a four-month winning streak.