Kingfisher, the company behind B&Q and Homebase, is lifting the retail sector after saying adjusted pre-tax profit for the six months to 1 August will be between £285m and £290m.DSG International, which owns the Currys and PC World chains, is also higher after appointing Tim How, former boss of Majestic Wine, as a non-executive director.The best performer in the sector is catalogue-based antibodies distributor Abcam, which underlined the recession-proof nature of its business with doubled profits in the year just ended.The aerospace and defence sector is under slight attack. Among the fallers is BAE, which said today it has made a complaint to the US Government Accountability Office (GAO) asking it to review a US Army decision to award a vehicle contract to one of its competitors.Top performing sectors so far todayMining 17,035.74 +1.91%Forestry & Paper 3,224.94 +1.66%Personal Goods 8,921.20 +1.65%General Retailers 1,667.57 +1.26%Industrial Transportation 2,001.32 +1.00%Bottom performing sectors so far todayLife Insurance 3,601.83 -0.63%Aerospace and Defence 2,783.26 -0.62%Real Estate 2,025.37 -0.53%Electricity 6,378.06 -0.47%Insurance (non-life) 1,298.75 -0.41%