The Metatrader Expert Advisor EA Sigma recognizes market conditions automatically, adapts itself and returns high profits whatever the market does.Did you ever use mechanical trading systems for currency trading? Most likely, you did and made profits during certain market periods and as soon the market condition changed your profits was gone quicker than they came.We all made this experience. While mechanical trading systems will fail soon or late, high end systems similar to those who are used from the big market players return high profits during any condition.