On Thursday, August 2, European stock turned lower as Mario Draghi's comments failed to meet markets expectation. The Stoxx Europe 600 Index tumbled 0.8 per cent to 260.45 during today's London trading session. At the same time, the U.K.'s FTSE 100 Index declined by 0.6 per cent, Germany's DAX Index erased 1.4 per cent and France's CAC 40 Index fell by 1.6 per cent.