Morning Markets - FTSE down ahead of US GDP data

British Airways topped the leaders' board at 219p, up 3 points (1.39%) after the beleaguered airline revealed better-than-expected results for the first quarter, which was hit by disruption to European airspace from the volcanic ash cloud in April and cabin crew strikes in May and June. Severn Trent was also up, trading at £12.96, up 16 points (1.25%) on the back of its announcement this week that trading for the quarter ended 19 July was in line with expectations throughout the period. Miners did poorly, with both BHP Billiton and Rio Tinto falling, down 21.50 points (1.09%) to £19.5...