NEWS RELEASE

GAIN Capital Group Included On INC. 5000 List Of Fastest-Growing Companies For The Fourth Consecutive Year

BEDMINSTER, NJ - September 2, 2008

GAIN Capital Group, a market leader in the online foreign exchange (forex or FX) industry, has been named to the Inc. 5000 list of fastest-growing companies for the fourth consecutive year.

GAIN Capital Group, which owns the popular FOREX.com web site for retail foreign currency trading, was ranked 41st among the fastest-growing financial services firms, and was also ranked #770 overall among the entire Inc. 5000 list. The annual rankings, compiled by Inc. magazine, lists the fastest-growing, privately held companies in the United States based on each firm's four-year cumulative revenue growth percentage (and not on total amount of revenue).

GAIN's rank on the Inc. 5000 list is based on the company's 458.4 percent cumulative increase in revenue since 2004. In addition, GAIN has reported six consecutive years of top-line growth above 65 percent.

"Our fourth consecutive appearance on the Inc. 5000 list is a great opportunity to celebrate the ongoing growth of our company, and validates the effort that the entire GAIN Capital team contributes every day," said Glenn Stevens, chief executive officer of GAIN Capital Group. "This recognition of GAIN's sustained growth by Inc. magazine serves as an encouragement for all of GAIN's employees as we continue to globally build our business and brand."

GAIN Capital operates FOREX.com, a popular web site with retail foreign exchange trading customers. Forex is the most heavily traded market in the world, with a daily volume that exceeds $3.2 trillion, according to the Bank for International Settlements (BIS). Among retail investors, forex trading has gained widespread acceptance over the past several years. According to U.S. research firm Aite Group, average daily trade volume in the retail forex market alone increased 500 percent from 2001 to 2006, reaching an estimated $77 billion per day in 2007*. To learn more about the company or to open a free forex practice account, visit www.forex.com.

GAIN Capital and the other companies included on the Inc. 5000 list are ranked according to each organization's cumulative percentage of revenue growth over the previous four-year period. Complete information on this year's Inc. 5000, including company profiles and a list of the fastest-growing companies by industry and region, can be found at www.inc5000.com, and in the September issue of Inc. magazine (which is now on newsstands through September 30).

(*) Source: Aite Group, Retail FX: Taking Center in Overall Market Growth, 7/16/2007

About GAIN Capital Holdings Inc. & GAIN Capital Group LLC

GAIN Capital Holdings Inc. is a market leader in the online foreign exchange (forex or FX) industry. Founded in 1999 by Wall Street veterans, GAIN now services clients from more than 140 countries and supports average trade volume in excess of $100 billion per month.* Headquartered in Bedminster, New Jersey, the company operates sales and support offices in New York City and London.

GAIN Capital Group LLC, the U.S. regulated subsidiary of GAIN Capital Holdings Inc., operates FOREX.com (www.forex.com), one of the largest, best-known brands in the retail forex industry. FOREX.com services individual investors of all experience levels with a full-service trading platform, advanced tools and research, and extensive education and training. In addition to its direct marketing efforts, GAIN Capital currently supports over 50 relationships and white label arrangements with broker/dealers, Futures Commission Merchants (FCMs) and other financial services firms across North America, Europe and Asia. GAIN Capital Group LLC, and FOREX.com are registered with the National Futures Association (NFA) as a Futures Commission Merchant (NFA ID #0339826). For company information, visit http://www.gaincapital.com, or for trading information, visit www.forex.com.

*Includes customer trades, rollovers, and counterparty transactions.