MarketFighter EA is a free automated trading robot built by ForexStore that combines a Stochastic oscillator entry signal with a Moving Average trend filter to open trades on EURUSD, USDJPY, and USDCHF. What sets it apart from simpler grid systems is its multi-session architecture: the EA runs several independent trading sessions simultaneously, each with its own logic and position tracking, so a recovery grid on one session does not block fresh entries in another.The strategy opens an initial position when the Stochastic crosses into overbought or oversold territory, confirmed by price's relationship to a Moving Average — keeping the EA from trading directly against the prevailing trend. If the market moves against the first position, subsequent trades are added in fixed lot increments forming a controlled grid that closes collectively when price reverts. Risk is managed through a configurable RiskLimit parameter and an optional Drawdown Control that closes all positions once a set equity threshold is breached.MarketFighter runs on the H1 timeframe and is fully compatible with both MT4 and MT5 platforms. At $0, it is one of the few genuinely free grid Expert Advisors available, making it an accessible first step for traders exploring automated strategies on major USD pairs without any financial commitment.