GM's share price hit a 65-year low of 2.92 dollars, down 13.02 per cent, a day after Deutsche Bank analysts forecast a share value of "zero" for the company. In the battered financial sector, credit card firm American Express tumbled 6.17 per cent to 22.50 following the announcement yesterday that it had received permission to convert into a full-status bank. That will make it eligible for aid from the US Treasury's $US700 billion ($A1.06 trillion) bank bailout package. Citigroup slid 3.66 per cent to $US10.80 after announcing it was placing a moratorium on foreclosures for most home loan borrowers, and that it would work with some 500,000 stretched mortgage customers to help them keep their homes. It was the first time Citi shares had closed below $US11 since 1996.