The FTSE 100 advanced 0.4% to a new record high above 10,851 on Thursday, lifted primarily by upbeat corporate developments. Rolls-Royce jumped nearly 5% after raising its outlook and unveiling a multi-year share buyback program, following annual results that beat expectations. WPP reversed earlier losses to finish 5.4% higher, as investors appeared to have already priced in its weak guidance and dividend cuts, while starting to credit the new CEO’s turnaround strategy. London Stock Exchange Group surged 9% after announcing an additional £3 billion in shareholder returns over the next 12 months. These gains were partially offset by weakness in the mining sector, with Fresnillo down about 5%, Antofagasta 4%, Anglo American more than 3%, and Rio Tinto over 2%.