There is plenty to lose in the foreign currency exchange market, but this company would like you to focus on the potential gains. GAIN Capital Holdings provides over-the-counter foreign exchange (forex) services to retail traders (responsible for about 97% of the company's trading volume) and institutional investors, and through financial intermediaries such as broker-dealers, banks, and futures commission merchants. The company's FOREXTrader platform provides online trading tools and educational resources to help individual investors deal in forex trading online. It has 133,000 funded retail accounts.