Spirax-Sarco was performing well after Goldman Sachs upgraded the stock to 'buy' and raised its target price from 2,100p to 2,510p. Electronics retailer Dixons was up after revealing that it is seeking to retire some of its existing debt prior to issuing some new loan notes. The group has offered to buy back up to £130m pounds in outstanding debt. Of the total, £80m would come from the company's outstanding £300m 2012 bond issue which currently yields 6.125%. A further £50m would go on the 8.75% bonds due 2015. Meanwhile, Laird headed the other way after the same US broker cut its recommendation to 'sell'. The Paragon Group of Companies was down after purchasing further unsecured loans through its Idem Capital Securities subsidiary from The Royal Bank of Scotland under the terms of a forward flow agreement.FTSE 250 - RisersFerrexpo (FXPO) 195.30p +6.84%Bwin.party Digital Entertainment (BPTY) 102.30p +6.34%Hays (HAS) 81.40p +5.99%Dixons Retail (DXNS) 20.30p +5.29%Spirax-Sarco Engineering (SPX) 2,133.00p +4.82%Bank of Georgia Holdings (BGEO) 1,300.00p +4.25%Dunelm Group (DNLM) 601.00p +3.71%Lonmin (LMI) 616.50p +3.44%Man Group (EMG) 83.35p +3.35%Halfords Group (HFD) 255.90p +3.14%FTSE 250 - FallersLaird (LRD) 230.80p -4.07%Dairy Crest Group (DCG) 345.20p -3.36%Premier Farnell (PFL) 185.90p -2.52%Paragon Group Of Companies (PAG) 199.90p -2.30%Premier Oil (PMO) 379.00p -2.17%Ruspetro (RPO) 117.00p -2.09%BH Global Ltd. USD Shares (BHGU) 11.34 -1.73%Salamander Energy (SMDR) 197.90p -1.69%Oxford Instruments (OXIG) 1,365.00p -1.59%Hikma Pharmaceuticals (HIK) 713.50p -1.59%NR