FTSE depressed by RBS lack of interest

Royal Bank of Scotland, Britain's second-largest lender, has dropped 25p, or 1.5%, to 1,686p, as the company said the full-year net interest margin is expected to be lower for the full year than in the first half. Tate & Lyle, the world's largest cane-sugar refiner, has also declined 8.75p, or 1.5%, to 570.75p, as Morgan Stanley rated the shares ``underweight'' in new coverage with a share- price forecast of 470p. Elsewhere, British Airways, Europe's third-biggest airline, has slipped 4p, or 1.2%, to 330.25p, as Merrill Lynch cut its recommendation on the shares to ``neutral'' from ``bu...