Stock ETF Investors: Time to ‘Sell in May and Go Away’?

U.S. markets and stock exchange traded funds have been enjoying one of their best starts to a new year in decades, but as history has shown, the good times can quickly sour. The SPDR S&P 500 ETF (NYSEArca: SPY) increased 18.2% year-to-date and was recently on a back-to-back record breaking...