One of the most challenging & frustrating tasks for a trader, is to define with a rules-based (systematic) methodology, and identify (on a real-time basis), when a market is in a trading range.
Using the MACD-v both of these goals are achieved.
The market is defined as being as "Ranging" (one of the Core 7 Range Rules/States) when the MACD-v is between the -50 and 50 ranges, for more than 25 bars consecutively.