Trade Scalper Supernova EA MT4 for MetaTrader 4 (MT4) is a custom Expert Advisor (EA) designed specifically for scalping strategies. Scalping generally involves making a large number of trades within a very short timeframe to capture small price movements. This type of EA is optimized to exploit such small, frequent price changes, typically on short timeframes such as M1 (1-minute) or M5 (5-minute).