EA Scalping Asia v1.0 Source Code MQ4 is an Expert Advisor (EA) for MetaTrader 4 (MT4), specifically designed for scalping strategies in the Asian trading session. Scalping is a trading style that aims to make small profits from frequent, short-term trades. This particular EA is designed to take advantage of the lower volatility and smaller price movements typical in the Asian session (which occurs primarily between 00:00 and 09:00 GMT).