GAIN Capital Announces Monthly Metrics for May 2013

             GAIN Capital Announces Monthly Metrics for May 2013

- Double-digit sequential growth in Retail OTC and Institutional Volume

- Client metrics continue positive trajectory

PR Newswire

BEDMINSTER, N.J., June 17, 2013

BEDMINSTER, N.J., June 17, 2013 /PRNewswire/ --GAIN Capital Holdings, Inc.
(NYSE: GCAP, "GAIN" or "the Company") today reported certain operating metrics
for the month of May 2013.

Retail metrics

  oRetail OTC trading volume[1] of $161.5 billion, an increase of 10.7% from
    April 2013 and an increase of 28.6% from May 2012.
  oAverage daily retail OTC trading volume of $7.0 billion, an increase of
    5.9% from April 2013 and an increase of 28.6% from May 2012.
  oActive retail OTC accounts[2] of 64,028, an increase of 0.7% from April
    2013 and an increase of 3.9% from May 2012.
  oFutures Daily Average Revenue Trades[3] (DARTs) of 13,236, a 9.8% decrease
    from April 2013.
  oTotal funded accounts[4] of 100,671, an increase of 1.7% from April 2013
    and an increase of 35.2% from May 2012.
  oTotal retail customer assets[5] of $466.9 million, an increase of 2.2%
    from April 2013 and an increase of 55.4% from May 2012.

Institutional metrics

  oTotal institutional trading volume[6] of $382.7 billion, an increase of
    21.2% from April 2013 and an increase of 152.6% from May 2012.
  oAverage daily institutional volume of $16.6 billion, an increase of 15.9%
    from April 2013 and an increase of 184.0% from May 2012.

Historical metrics and financial information can be found on the Company's
investor relations website at http://ir.gaincapital.com.

This operating data is preliminary and subject to revision and should not be
taken as an indication of GAIN's financial performance. GAIN undertakes no
obligation to publicly update or review previously reported operating data.

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 to
a diverse client base of retail and institutional investors.

GAIN's businesses include FOREX.com, which provides retail traders around the
world access to a variety of global OTC financial markets, including forex,
precious metals and CFDs on commodities and indices; GTX, a fully independent
FX ECN for hedge funds and institutions; OEC, an innovative online futures
broker; andGAIN Securities, Inc.(member FINRA/SIPC), a licensed U.S.
broker-dealer.

GAIN Capitalis headquartered inBedminster, New Jersey,with a global
presence across North America, Europe and the Asia Pacific regions. For
further company information, visitwww.gaincapital.com.

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[1] U.S. dollar equivalent of notional amounts traded
[2] Retail OTC accounts who executed a transaction during the month
[3] Average daily trades transacted by OEC customers
[4] Retail accounts who maintained a cash balance
[5] Amount due to clients, including customer deposits and unrealized gains or
losses arising from open positions
[6] U.S. dollar equivalent of notional amounts traded

SOURCE GAIN Capital Holdings, Inc.

Website: http://www.gaincapital.com
Contact: Investor Relations: Hugh Collins and Lynn Morgen, MBS Value Partners,
+1 212.750.5800, gain@mbsvalue.com; Media: Chris Mittendorf, Edelman for GAIN
Capital, +1 212.704.8134, pr@gaincapital.com
 
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