The chart shows the Consumer Discretionary (XLY), Financials (XLF) and Industrial (XLI) sector ETFs as of Friday's close. These sectors have been the best performers since the March 2009 bottom and also led the charge upward from the November 2012 bottom. If we are to see new highs in the S&P 500, these sectors will have to lead the way. Consumer Discretionary is showing a material break above its May top while Financials and Industrials test theirs. These sectors will give the early signal whether the rally can be sustained. stockmarketmonk.com/relative-strength/