The FTSE 100 advanced on Tuesday, extending a 0.7% gain on Monday as strong corporate earnings boosted sentiment. Smith & Nephew surged over 15% after beating first-half revenue and profit estimates and announcing a $500 million buyback. Growth improved across all divisions, with analysts praising the margin recovery and outlook clarity, despite a minor tariff impact expected in 2025. Fresnillo jumped 6% after raising its gold production forecast. Diageo rose over 4% despite flat earnings and a CEO transition, with investors encouraged by raised cost-savings targets and a second-half growth outlook. The drinks giant said organic profit will rise mid-single digits, skewed to late 2025. BP climbed 2.6% after a Q2 profit beat, driven by stronger refining margins and oil trading. It launched a $750 million buyback and said upstream output would dip slightly in Q3 as it continues shifting focus back to fossil fuels.