You've got that right! This is the NYAD Renko chart. You can also change Renko to Heikinashi candles. I found out that it provides a great way to range trade. It literally goes from over bought to oversold every 2-3 days. If you notice we closed at over bought on the 30 min chart. I bought puts at end of day as I don't expect SPY to gap up tmro.