Stocks have resumed yesterday's slide following a tumble on Wall Street last night.B&Q owner Kingfisher is lower even after it saw year-on-year like-for-like sales growth of 3.3% in the 13 weeks ended 30 April. Total sales were also up 3.3%, while retail profit rose 19.1% in comparison with the year before. The number were boosted by warm weather and bank holidays, but the company is still decidedly cautious.Elsewhere in retail, online fashion store ASOS is down even after it reported a profit before tax and exceptional items of £28.65m in the year to 31 March, up 41% from £20.34m achieved the year before, ahead of market consensus expectations of £27.5m.Speciality chemicals group Johnson Matthey notched up pre-tax profits of £260.6m in the year to 31 March on revenue of £9,985m. Underlying profits before tax were £345.5m, up 36% from £254.1m the year before. Market expectations were for adjusted profits of £334.6m.Engineering support services group Redhall sinks after it reported a weak set of first half figures following the loss of the Vivergo contract but it expects trading in the second half and beyond to be much improved. The niche engineer said adjusted pre-tax profit fell 70% at £1m during the six months ended 31 March 2011. Revenue for the half year fell to £64.3m from £65.4m in 2010.