Shares in Punch Taverns, the leased and managed pub group, have this afternoon closed at an all-time low. The stock at one point dipped below 160p before closing at 162.25p - a drop of 5.7% from yesterday. Punch’s share capital now stands at £458.5m, dwarfed by its £4.9bn debt. It marks the end of a torrid week for Punch and Enterprise Inns, which have both endured substantial loses, driven by fears over the respective groups’ debt positions, and compounded by general weakness in financial markets. Punch has lost 35.7% of its market value in the past month and is 87.3% down on its market high of last year, when the shares were up at £14.00. Enterprise meanwhile has now lost 43.4% of its market value in the past month – it was down 5% today to close at 175.75p, valuing its share capital at £936.06 – and is down 76.7% from its high of last year. While some analysts believe it is highly unlikely, there have been suggestions that both companies would need to sell assets or seek fresh funds from shareholders through a rights issue in order to avoid defaulting on debt. It was a day of falls for many companies from the eating and drinking-out market, with Mitchells & Butlers and Whitbread both down 4.6%.