Shares of BofA, Citi drop on stress test concerns

Shares of BofA, Citi drop on stress test concerns: "Shares of Bank of America and Citi each dropped about 5 percent in midday trading. Wells Fargo & Co., PNC Financial Services Group Inc. and others also dipped. JPMorgan Chase & Co., American Express Co. and a few more of the 19 banks tested by the government traded slightly higher."