EA_Sigma - Version 1 The Metatrader Expert Advisor EA Sigma recognizes market conditions automatically, adapts itself and returns high profits whatever the market does. Winrate: 96%.The Expert Advisor EA Sigma is a 100% automated Forex trading system what trades during the Asia session. The trade logic is based on customized technical indicators like relative strength index, average true range, Bollinger bands and custom indicators developed from our MQL programming team. The combination from high win rate and very low drawdown's makes the system to one of the best available for automated Forex trading.