News Release

BEDMINSTER, N.J., May 1, 2012 - GAIN Capital Holdings, Inc. (NYSE: GCAP), a global provider of online trading services, plans to announce its 2012 first quarter results on Thursday, May 10, 2012 before the market opens.  A conference call to discuss GAIN Capital's financial and operating results will be held that day at 8:30 a.m. ET.

Conference Call:
Participants may access the live call by dialing 1.800.215.2410 (U.S. domestic), or at +1.617.597.5410 (international), and entering passcode 62661630#.  A live audio webcast of the call, as well as PDF copies of the release and presentation, will also be available on the Investor Relations section of the GAIN Capital website (http://ir.gaincapital.com).

An audio replay will be made available for one week starting approximately two hours after the call by dialing 1.888.286.8010 in the U.S. or +1.617.801.6888 from abroad, and entering passcode 47714184#.

About GAIN Capital
GAIN Capital Holdings, Inc. (NYSE: GCAP) is a global provider of online trading services. GAIN's innovative trading technology provides market access and highly automated trade execution services across multiple asset classes, including foreign exchange (forex or FX), contracts for difference (CFDs) and exchange-based products, to a diverse client base of retail and institutional investors.

A pioneer in online forex trading, GAIN Capital operates FOREX.com, one of the largest and best-known brands in the retail forex industry. GAIN's other businesses include GAIN GTX, a fully independent FX ECN for hedge funds and institutions, and GAIN Securities, Inc. (member FINRA/SIPC) a licensed U.S. broker-dealer.

GAIN Capital and its affiliates have offices in New York City; Bedminster, New Jersey; London; Sydney; Hong Kong; Tokyo; Singapore; Beijing and Seoul.

For company information, visit www.gaincapital.com.

Contacts:

Investor Relations
MBS Value Partners
Hugh Collins  hugh.collins@mbsvalue.com
Lynn Morgen  lynn.morgen@mbsvalue.com
Phone:          +1 212 750 5800

Public Relations
Edelman
Mike Geller  mike.geller@edelman.com
Phone:        +1 212 729 2163
Chris Mittendorf chris.mittendorf@edelman.com
Phone:              +1 212 704 8134