Dunelm was a poor performer on Wednesday despite Panmure Gorden highlighting the stock as one of its 'conviction buys' in the UK retail sector ahead of the critical Christmas reporting season in the next few weeks. The broker said: "Our top large cap general retail sector pick is category killer and number one UK homewares market share holder Dunelm [rated 'buy']. Our model suggests that Dunelm could return another £80m-90m to shareholders by FY2016E." Meanwhile, Caledonia Investments was a strong riser after reporting that it has sold its stake in Celerant Consulting Investments, the global operations management consultancy, to Hitachi Consulting Corporation. The deal to offload its 47.3% equity holding in Celerant will net the FTSE 250 investment trust £43.3m after the repayment of outstanding loan notes and accrued interest. A further £4.3m equivalent will be placed in escrow in respect of warranties, completion balance sheet adjustments and other items. FTSE 250 - RisersFerrexpo (FXPO) 273.90p +9.04%Bank of Georgia Holdings (BGEO) 1,115.00p +8.25%Kenmare Resources (KMR) 33.18p +6.69%Fenner (FENR) 419.10p +5.75%Premier Oil (PMO) 355.30p +5.59%Caledonia Investments (CLDN) 1,620.00p +5.47%Domino's Pizza Group (DOM) 524.00p +5.35%Ted Baker (TED) 1,170.00p +5.31%Heritage Oil (HOIL) 199.10p +5.01%Henderson Group (HGG) 138.90p +4.99%FTSE 250 - FallersNew World Resources A Shares (NWR) 320.00p -5.13%WH Smith (SMWH) 650.00p -2.99%Stobart Group Ltd. (STOB) 102.50p -2.38%Ocado Group (OCDO) 84.75p -2.19%KCOM Group (KCOM) 71.55p -2.05%Dunelm Group (DNLM) 683.50p -2.01%Supergroup (SGP) 550.00p -1.96%Direct Line Insurance Group (DLG) 212.60p -1.76%Grainger (GRI) 116.80p -1.52%Computacenter (CCC) 416.10p -1.40%NR