Centamin Egypt rose to the top spot among FTSE 250 stocks after Investec reiterated its buy recommendation and 164p target on the company. Despite an upgrade from RBS to hold from sell, Jupiter Fund Management was leading the way down as investors still held concerns over the firm's 10% fall in assets under management, as announced on Friday. Shares in application software provider Misys perked up on Monday morning as the company announced the start of its share buy-back programme. FTSE 250 - RisersCentamin Egypt Ltd. (CEY) 105.60p +4.87%Premier Foods (PFD) 4.69p +4.18%SIG (SHI) 99.80p +3.90%Afren (AFR) 93.80p +3.65%Domino Printing Sciences (DNO) 538.00p +3.07%JPMorgan Russian Securities (JRS) 486.00p +3.06%AZ Electronic Materials SA (WI) (AZEM) 252.10p +2.31%Fidessa Group (FDSA) 1,667.00p +2.27%Go-Ahead Group (GOG) 1,493.00p +2.26%Galliford Try (GFRD) 442.40p +2.10%FTSE 250 - FallersJupiter Fund Management (JUP) 215.50p -3.97%Micro Focus International Plc (MCRO) 333.30p -3.36%Ophir Energy (OPHR) 227.10p -3.36%Allied Gold Mining (ALD) 157.00p -3.33%Kenmare Resources (KMR) 39.25p -3.21%Dunelm Group (DNLM) 466.90p -3.05%Renishaw (RSW) 870.00p -3.01%CSR (CSR) 184.40p -3.00%Carpetright (CPR) 500.00p -2.91%Ocado Group (OCDO) 87.40p -2.89%NR