City analysts have raised the possibility of housebuilder Barratt Homes being taken into administration after it lost half its value in the first three days of the week. As Building went to press, Barratt had a market capitalisation of £213m, down from £488m on Monday. It has an outstanding debt of £1.7bn. Barratt's slide came as shares in all quoted housebuilders slumped after more negative news about the housing market. Taylor Wimpey lost a third of its value. Barratt is seen as vulnerable because of the debt it took on to fund its £2.2bn purchase of Wilson Bowden last year. Richard Kelly, partner at accountant BDO Stoy Hayward, said: "It's potentially going to be very difficult for a number of housebuilders to get through the next few months [as a going concern]. Those who don't have massive debt burdens will be best placed to struggle on." Another City source, who declined to be named, said: "When the share price falls this far, the market is saying it expects the company to go bust."