this may in part answer the why of Oanda's 50% client profitability, they have more
clients with larger account margins than the other brokers in the list
"In addition to the legally required statistics, FXCM have also released to us
additional information, breaking down profitability by trading account size:
Equity Range . . . . . % Profitable
$0 â $999 . . . . . . . . . .27.89%
$1,000 â $4,999 . . . . . 40.52%
$5,000 â $9,999 . . . . . 42.36%
$10,000+ . . . . . . . . . . 47.74%
It's interesting, although not unexpected, that traders with larger accounts are
more often profitable. However it's still true to say that in all categories most
traders are unprofitable."
http://trading-gurus.com/fxcm-release-extra-forex-trader-profitability-statistics/
"To follow up on previous discussion from Monday, here's the profitability by
account equity range broken down on a quarterly basis (as opposed to previous
monthly figures)." Jason Rogers FXCM Representative
Equity Range . . . . . % Profitable
$0 â $999 . . . . . . . . . .20.91%
$1,000 â $4,999 . . . . . 33.12%
$5,000 â $9,999 . . . . . 37.37%
$10,000+ . . . . . . . . . . 44.09%
and post #56: "In the weeks ahead we will be releasing more details on profitability
broken down even further, for example by currency pair, to give you more insight
into trader profitability."
http://www.forexfactory.com/showthread.php?p=4116326&posted=1#post4116326