The Ulcer Index Indicator is a useful free Forex indicator for MT4 that is popular among traders. It is a technical analysis tool that helps traders determine the risk associated with their positions. The indicator measures the drawdown of a position and provides a visual representation of the potential risk. It is based on the idea that the longer a position is held, the greater the potential for drawdown. The Ulcer Index Indicator is easy to use and provides traders with valuable insights into their trading risk.