JD Sports Fashion was sharply higher ahead of tomorrow's half-year results from the trendy sportswear retailer.Elsewhere in retail, Carpetright was in demand but bike and car parts group Halfords was left on the shelf.Insurer Brit Insurance was wanted after Friday's late announcement that the consortium headed by US private equity firm Apollo has upped its bid offer to £10.75 per share.FTSE 250 - RisersJD Sports Fashion (JD.) 823.00p +13.36%Carpetright (CPR) 783.50p +6.31%Cranswick (CWK) 832.50p +6.19%Wellstream Holdings (WSM) 609.00p +5.45%COLT Group S.A. (COLT) 122.70p +5.32%St James's Place (STJ) 287.20p +5.16%GKN (GKN) 168.00p +4.35%Brit Insurance Holdings NV (BRE) 1,028.00p +4.10%Moneysupermarket.com (MONY) 86.55p +3.65%Howden Joinery Group (HWDN) 73.55p +3.59%FTSE 250 - FallersHikma Pharmaceuticals (HIK) 726.00p -5.22%Halfords Group (HFD) 441.00p -4.59%Ferrexpo (FXPO) 304.00p -3.22%Hargreaves Lansdown (HL.) 447.30p -3.08%Ocado (OCDO) 143.00p -3.05%Stobart Group Ltd. (STOB) 152.90p -2.80%Homeserve (HSV) 471.90p -2.74%Hays (HAS) 112.60p -2.60%Laird (LRD) 140.90p -2.29%Hansen Transmissions International (HSN) 55.20p -2.04%