Stocks fell today, with the Dow passing the bear-market low it set Tuesday, and two giants of US banking and manufacturing trading at less than $2, MarketWatch reports. Mounting problems at Citigroup and General Motors drove their shares to $1.02, and $1.95, respectively. The Dow dropped 281.40 to close at 6,594.44. The Nasdaq lost 54.15, closing at 1,299.59, while the S&P 500 lost 30.32 to settle at 682.55. (More Dow Jones stories.)