"Sell in May and go into cyclicals," says Ralph Acampora after the last month. He reminds of an old adage saying sectors going down the least during a selloff become the new market leaders. During SPY's 5.2% decline from May 22-June 6, the best performers were Tech (XLK) and Industrials (XLI). The worst were Telecommunications (IYZ) and Utilities (XLU). This "rolling rotation" between sectors is necessary, he says, to give further life to the secular bull market begun in March 2009.