The TTM Trend Indicator is a free, popular and useful Forex indicator for MT4. The TTM Trend Indicator works by measuring the momentum of the current trend and the strength of the trend direction. It then plots the trend direction and strength on the chart in the form of a colored line. If the line is green, it indicates that the trend is up and the market is in an uptrend. If the line is red, it indicates that the trend is down and the market is in a downtrend. The indicator also displays buy and sell arrows which can be used to signal entry and exit points. The TTM Trend Indicator is a powerful tool for traders and can be used to improve trading performance.