CSR, the chipmaking firm, has taken a hit after Numis downgraded the group to 'add', from 'buy', on the back of worrying news from its major customer Nokia this week, which cut its second-quarter outlook.Heading the other way are the retailers, with Sports Direct, Carpetright and Dunelm posting impressive gains.Edging higher is Monks Investment Trust after achieving a net asset value total return of 11.2% in the year ended 30 April. During the same period the share price total return was 16.7%, while the FTSE World Index in sterling terms returned 9.3%. Coal-fired power station operator Drax is being helped from a kind word from Matrix, which upped its target price from 460p to 550p, saying that now is the time to focus on its biomass potential with UK policy becoming clearer in the next few months.Keith Clarke is to pack away his pencils and drawing board and give up the role of chief executive at design and engineering consultancy WS Atkins. Shares have fallen into the red.---BCFTSE 250 - RisersSports Direct International (SPD) 236.40p +5.30%Premier Oil (PMO) 490.10p +3.09%Cable & Wireless Worldwide (CW.) 51.90p +3.08%Carpetright (CPR) 724.50p +3.06%Computacenter (CCC) 460.20p +2.49%Savills (SVS) 422.90p +2.30%Dunelm Group (DNLM) 474.00p +2.22%QinetiQ Group (QQ.) 116.00p +2.02%Intermediate Capital Group (ICP) 345.80p +1.98%Dignity (DTY) 774.50p +1.84%FTSE 250 - FallersCSR (CSR) 338.50p -3.48%Centamin Egypt Ltd. (CEY) 122.20p -3.25%Afren (AFR) 163.30p -2.74%Ashtead Group (AHT) 172.50p -2.54%Thomas Cook Group (TCG) 147.70p -2.31%Big Yellow Group (BYG) 334.20p -1.85%Victrex (VCT) 1,453.00p -1.82%Home Retail Group (HOME) 209.90p -1.78%Regus (RGU) 112.10p -1.75%Mothercare (MTC) 423.80p -1.56%