Stocks ended a volatile first quarter with gains, to push the first quarter for the S&P 500 into the green. The S&P 500 gained 0.79% and the NASDAQ 1.04%. Stocks jumped right at the outset as Janet Yellen goosed the market with dovish comments that offset her hawkish commentary after the last Federal Reserve meeting. We have a lot of economic activity this week including ISM Manufacturing Tuesday, ISM Non Manufacturing Thursday, and the monthly employment data Friday.