The week ahead at Wall Street

But recent trading action on an intraday basis suggests investors may be starting to warm up to stocks again. In three of the last four losing sessions, late-day buying took over in a pattern that had begun to emerge at the end of January. (A specialist trader works at his post on the floor of the New York Stock Exchange (NYSE) February 11, 2016. - REUTERS)

The S&P 500 is down about 13 percent from its record high in May, as oil remains mired below US$30 a barrel, while concerns about stability among banks and uncertainty about the U.S. Federal Reserve's path of rate hikes have pushed investors away from risk assets.