The Trend Intensity Index (TII) is a popular and free Forex indicator for the MT5 trading platform. It uses a range of 0 to 100, with 0 meaning no trend and 100 representing a strong trend. The Trend Intensity Index (TII) is a powerful indicator that can help traders identify both short-term and long-term trends. The indicator is calculated by taking the difference between the current and previous bar’s closing prices and then normalizing the result. It is a popular and free indicator that is easy to use and understand.