Wall St opens higher, banks gain on rates speculation

Wall Street opened higher on Tuesday, recouping some of Monday's losses, with banks among the biggest gainers as investors speculated on the possibility of a June interest rate hike. Minutes of the Federal Reserve's April meeting suggested a June rate hike had not been ruled out, surprising investors who had thought the Fed would stand pat until the end of the year. "Investors are looking for direction in terms of the health of the economy and the Fed's next move.