Renko 15min SPX chart playing via SPY rocked today. Other than small whipsaw between about 12 and 1:30 which you should have been able to basically break even on, give or take a few cents, had 3 great moves each for right at 3 points for a whopping 9 points total. May have to copy and paste chart.

http://stockcharts.com/h-sc/ui?s=$SPX&p=15&yr=0&mn=0&dy=1&id=p64077322076