The Williams AD MA Indicator is a popular and free Forex indicator for MetaTrader 4 (MT4) that is useful for any trader. It is based on the ADX and Moving Average indicators and is designed to identify trend direction and strength. The indicator shows a blue line when the trend is up, a red line when the trend is down, and an orange line when the trend is flat. The Williams AD MA Indicator is a great tool for any Forex trader and is free to download from the MetaTrader 4 platform.