A chart analysis tool (built-in or custom). Indicators plot values on the chart (lines, histograms) to show trends or patterns (e.g. Moving Averages, RSI, etc.). They cannot trade on their own. MetaTrader has many built-in Technical Indicators (MA, MACD, etc.) and allows Custom Indicators coded by users. Indicators (both types) are listed in the Navigator and can be attached to charts.