Shares in oil services group Wellstream surged after it confirmed it has received a number of preliminary takeover approaches. Peer Wood Group rose in sympathy.Sports Direct is in demand on the same day fellow sportswear retailer JD Sports Fashion reported a 64% rise in pre-tax profits.FTSE 250 - RisersWellstream Holdings (WSM) 787.00p +29.23%John Wood Group (WG.) 413.70p +5.91%Cookson Group (CKSN) 520.00p +3.79%Sports Direct International (SPD) 130.90p +3.72%Inchcape (INCH) 304.30p +3.61%Ashtead Group (AHT) 103.80p +3.59%Xchanging (XCH) 137.70p +3.38%Michael Page International (MPI) 468.90p +2.63%Rank Group (RNK) 123.00p +2.50%Hunting (HTG) 637.50p +2.41%FTSE 250 - FallersCentamin Egypt (CEY) 185.50p -4.13%F&C Commercial Property Trust (FCPT) 95.10p -3.94%Informa (INF) 412.60p -3.49%Kenmare Resources (KMR) 19.70p -3.43%St. Modwen Properties (SMP) 164.00p -3.07%Jardine Lloyd Thompson Group (JLT) 582.50p -2.92%Moneysupermarket.com (MONY) 84.40p -2.82%Ultra Electronics Holdings (ULE) 1,676.00p -2.39%Hikma Pharmaceuticals (HIK) 709.00p -2.34%Soco International (SIA) 442.70p -2.23%