Housebuilder Barratt Developments slips after it said it remains cautious about the outlook and will continue to match work in progress to demand, whilst reducing debt and controlling costs.Engineering IT systems provider Aveva falls back after saying that, while it has traded in line with expectations, concerns still remain over commodity pricing and availability of funding.On the plus side, precious metal miner Hochschild advances as gold prices climb.FTSE 250 - RisersHochschild Mining (HOC) 294.50p +8.27%Peter Hambro Mining (POG) 565.00p +6.81%PV Crystalox Solar (PVCS) 79.00p +6.76%Cookson Group (CKSN) 235.75p +6.55%Debenhams (DEB) 84.75p +5.28%Moneysupermarket.com (MONY) 50.50p +5.21%Yell Group (YELL) 22.25p +4.71%Meggitt (MGGT) 161.25p +4.71%Enterprise Inns (ETI) 126.25p +4.55%Michael Page International (MPI) 255.25p +4.50%FTSE 250 - FallersHenderson Group (HGG) 90.25p -2.96%CSR (CSR) 364.50p -2.93%Heritage Oil (HOIL) 454.25p -2.73%AG Barr (BAG) 1,265.00p -2.62%Aveva Group (AVV) 689.50p -2.54%Barratt Developments (BDEV) 151.25p -2.10%Punch Taverns (PUB) 87.25p -1.97%Ecofin Water & Power Opportunities (ECWO) 140.00p -1.75%SVG Capital (SVI) 100.75p -1.47%SSL International (SSL) 536.50p -1.38%