Investors in Egypt-focused gold miner Centamin showed their relief on Monday after the company announced that the Egyptian administrative court has decided that its Sukari mining licence is valid, eliminating the risk of losing its primary source of revenue. Centamin lost nearly 40% of its market capitalisation last week after media reports claimed on Tuesday that it could lose its concession agreement to mine Sukari. SDL shareholders appeared to welcome the news that the Chief Executive Officer (CEO) of the translation and communications software group is leaving the company with immediate effect to "pursue other business interests". John Hunter, only stepped up from being Chief Financial Officer in February 2011. Mark Lancaster, currently Chairman of SDL will assume the role of CEO, while the company looks for a replacement. LED lighting group Dialight gained after securing a "major order" for 1,224 LED fixtures from an unnamed, Texas-based rig owner and operator.Data centre operator Telecity dropped despite saying that full-year earnings will be in line with market forecasts. Consensus estimates for the full year ending December 31st are for pre-tax profits of £81.66m on revenues of £284.35m. Shares in Dixons were rebalancing after a strong week for the company which came following news that its main High Street rival, Comet, is likely to go into administration, prompting one broker to upgrade its price target for Dixons.FTSE 250 - RisersCentamin (DI) (CEY) 75.90p +25.45%Stobart Group Ltd. (STOB) 113.30p +4.91%SDL (SDL) 538.00p +3.46%Dialight (DIA) 1,172.00p +3.44%JD Sports Fashion (JD.) 761.00p +2.15%Redrow (RDW) 162.00p +2.14%Paragon Group Of Companies (PAG) 250.30p +1.38%TR Property Inv Trust Sigma Shares (TRYS) 81.95p +1.17%Ashtead Group (AHT) 383.60p +1.16%Mitie Group (MTO) 297.90p +1.09%FTSE 250 - FallersTelecity Group (TCY) 832.00p -8.87%Dixons Retail (DXNS) 24.44p -5.42%Bumi (BUMI) 268.20p -5.23%Ferrexpo (FXPO) 215.60p -4.98%Talvivaara Mining Company (TALV) 128.80p -4.87%Bwin.party Digital Entertainment (BPTY) 118.90p -4.34%Yule Catto & Co (YULC) 145.60p -3.83%Inmarsat (ISAT) 556.50p -3.80%Imagination Technologies Group (IMG) 463.70p -3.74%Homeserve (HSV) 226.60p -3.66%NR