Happy Forex Margin - Version 2.7.72 It is rare to find a Forex trading system that can be traded profitably as a scalping, day-trading or swing-trading system. The amazing thing about the Happy Forex Margin is that no matter what type of trader you are - day-trader or swing-trader - the Happy Forex Margin has the flexibility to produce incredible results.Technical Analysis - Learn how we use the Simple Forex technical analysis indicators.