SPX www.stockcharts.com/c-sc/sc?s=%24SPX&p=30&b=5&g=0&i=p12611450785&a=581824737&r=798&r=1520457117563 www.stockcharts.com/c-sc/sc?s=%24SPX&p=D&st=2017-12-28&i=p85645439053&a=581824992&r=543 www.stockcharts.com/c-sc/sc?s=%24SPX&p=D&yr=1&mn=0&dy=0&i=p76042547948&a=581825025&r=176