Based on my simple observation, a big green/red candle is usually followed by series of other green/red candles. Occurence of big green/red candle usually set panic/greed to retail traders and alert momentum traders to get in. Is my observation correct? (please correct me if I am wrong) Based on this fact, I am going to create a script/program that will calculate the average size/range of all candles during the trading day. The purpose is to correctly determine the size of what people perceived as a big candle during that particular trading day. But before putting some effort, I would like to know if there is readily available software/indicator for this purpose. I don't want to waste my time only to find out that there is readily software/indicator out there for that purpose. Thx a million!