YM 9/30E-mini Dow Jones Industrial Average Index FuturesCBOT_MINI_DL:YM1!StudyGuideTALevels are marked on the screen and color coded to the timeframe they were created on. Weekly box is grey and shows the high, low and median range. The red box is a daily high, low and median from yesterday. Orange levels are 4hr timeframe yellow is the hourly timeframe and blue is the 15min timeframe.