Sector movers: Tech companies on the rise

London is doing well on Wednesday with just three sectors on the decline.Concurrent Technologies is among the risers in the buoyant technology hardware and equipment sector after the computer products developer said sales in the second half are expected to 'materially exceed' sales in the first.The company, which makes high end embedded computer products for defence, communications, transportation and industrial markets, said trading will therefore be in line with market expectations for the full year. Concurrent expects to continue the practice of paying a second interim dividend to shareholders and to pay this before 6 April 2011. However there will be no final dividend in respect of 2010, the group said.The aerospace and defence sector is in the red with BAE Systems making losses. The defence equipment supplier announced it is acquiring a Denmark-based business specialising in providing products that help the police fight cyber crime. BAE is paying DKK1.2bn (£137m) for ETI A/S (www.etiglobal.net), which was founded in 1985. Revenues were DKK347m (£40m) in the year to June 2010. There are operations in Denmark, UK, US, Middle East and Asia. Top performing sectors so far todayTechnology Hardware & Equipment 632.71 +7.06%Automobiles & Parts 5,227.92 +2.19%Electricity 7,621.31 +1.15%Forestry & Paper 5,547.25 +1.08%Industrial Metals & Mining 8,226.60 +1.05%Bottom performing sectors so far todayMobile Telecommunications 3,878.76 -0.52%Aerospace and Defence 3,391.85 -0.24%Chemicals 7,148.43 -0.10%Aeronautics and Defence NULL 0.00%Alternative Investment Instruments NULL 0.00%