Mining group Bumi rose after saying that it continues to target a medium-term production target of 30mt each year and in light of the weak coal price environment, it will focus on lower cost pits and defer some of its expansion plans. Also flying higher was budget airline easyJet after it managed to increase both its passenger numbers and load factor in last month. CSR and Imagination Technologies were both proving popular ahead of the annual consumer electronics show, which displays the latest hot-topic gadgets, this year hosted in Las Vegas. UBS has downgraded its rating for precision tool maker Renishaw from 'buy' to 'neutral', saying that it foresees little upside given the stock's impressive rise in 2012. Over the past 12 months, the shares have risen by over 87%, including Monday's near 3% fall. This was helped by the firm recording recording revenues in the first quarter, reported in October. FTSE 250 - RisersRaven Russia Ltd (RUS) 65.25p +4.23%Imagination Technologies Group (IMG) 456.40p +4.20%COLT Group SA (COLT) 99.65p +3.80%Ted Baker (TED) 1,172.00p +3.72%Bumi (BUMI) 278.60p +3.68%Taylor Wimpey (TW.) 71.00p +3.57%Centamin (DI) (CEY) 40.54p +3.42%CSR (CSR) 361.90p +3.34%Heritage Oil (HOIL) 206.20p +3.25%Rathbone Brothers (RAT) 1,340.00p +3.08%FTSE 250 - FallersITE Group (ITE) 224.90p -4.38%Dialight (DIA) 1,018.00p -3.51%Renishaw (RSW) 1,953.00p -3.41%Vesuvius (VSVS) 368.70p -3.18%New World Resources A Shares (NWR) 321.20p -2.90%Ferrexpo (FXPO) 268.50p -2.51%Stagecoach Group (SGC) 311.80p -2.44%Home Retail Group (HOME) 124.40p -2.35%Berkeley Group Holdings (The) (BKG) 1,757.00p -2.28%Moneysupermarket.com Group (MONY) 158.80p -2.28%NR