Wall Street set to open lower as U.S. economic growth slows

U.S. gross domestic product braked more sharply than expected in the quarter and grew at only 0.2 percent annual rate as harsh weather dampened consumer spending and energy companies struggling with low prices cut spending. "The mixed economic data has been a concern. The low-rate environment is a bubble in itself and its like riding a balloon until the pin pops," said Andre Bakhos, managing director at Janlyn Capital in Bernardsville, New Jersey.