Forex Holy Grail v1.7 Indicator Source Code MQ4 is a technical trading tool that follows the Holy Grail trading strategy. It analyzes the financial market and provides buy/sell signals based on a synergy of the Exponential Moving Average (EMA) and the Average Directional Movement Index (ADX). When the ADX is above 30 (indicating a strong trend) and the price touches and rejects at the EMA (acting as a support/resistance zone), the indicator triggers a buy/sell entry. It’s a user-friendly tool suitable for both novice and experienced forex traders, emphasizing synergy with other technical tools or price action.