Dairy Crest is the top riser in the FTSE 250 after announcing that it has renewed a contract to supply the supermarket Morrisons with fresh milk through to 2015. Rail and bus operator FirstGroup, also higher, said it is currently trading in line with management expectations and is on track to deliver moderate earnings growth target for the full year. Engineering support services company Babcock International said current pressures on spending will slow short-term revenue growth but its order book and bid pipeline remain strong. Investors are focusing on the positives and the shares are higher.FTSE 250 - RisersDairy Crest Group (DCG) 372.10p +6.62%FirstGroup (FGP) 366.90p +4.95%Babcock International Group (BAB) 576.50p +4.53%Cookson Group (CKSN) 532.50p +3.90%Morgan Crucible (MGCR) 218.80p +3.45%Ferrexpo (FXPO) 303.40p +3.09%Sports Direct International (SPD) 142.00p +3.05%Thomas Cook Group (TCG) 176.40p +2.74%Close Brothers Group (CBG) 742.50p +2.63%Synergy Healthcare (SYR) 737.50p +2.57%FTSE 250 - FallersDrax Group (DRX) 383.80p -4.41%Premier Foods (PFD) 16.39p -3.87%Gartmore Group (GRT) 109.90p -3.17%Paragon Group Of Companies (PAG) 164.30p -2.84%Mitie Group (MTO) 193.50p -2.81%Filtrona PLC (FLTR) 247.80p -2.48%Grainger (GRI) 107.00p -2.46%Hansen Transmissions International (HSN) 51.45p -2.00%Kenmare Resources (KMR) 20.10p -1.95%BBA Aviation (BBA) 187.40p -1.94%