It is not just FX online brokers in the US, but everywhere. The FX
industry is an unregulated market. As such, there is also no regulation
or laws that funds from FX account has to be segregated and cannot
be used as working capital for the brokers.
For the futures industry which is regulated, customer funds have to
be segaregated by law. So if the brokers go under, customer funds
are safe.
The other disadvantage of many online FX is the day-to-day swap
roll-over. My understanding is that regardless of the interest rates
differential, the online broker may charge for swap roll-over even
though you should be receiving and not be charged.
For example, if you are long NZD agst USD. Since NZD has a much
higher interest rate than USD, your swap rollover is in your favour
so you should be receiving points instead of paying.
I have always say that the FX market is the world biggest legalized
bucket shops. Every trade that you make, your broker (even if it is
a legal bank) IS YOUR COUNTER PARTY!!! For any trade - you buyer
they seller, you seller they buyer.
This is unlike futures and stocks where your trade are executed on
an exchange. Your broker is really your broker to get the trade done.
In a regulated market, trading against you is illegal. You buy from
broker, you sell to broker is illegal. Front running your orders is also
illegal. But trading against you and front running orders is so
prevalant in the unregulated FX market.
Here is to confirm how this bucket shop mechanism works. This is
taken from a well-known TA product website.
QUOTE
<snip>. acts as the counterparty for each forex transaction and
as a liquidity provider to clients using its access to the inter-bank
market. In doing so, <snip> assumes the risk associated with each
transaction. A portion of <snip>'s profitability may be the difference
between the bid and the offer provided to the client, as well as
<snip>'s ability to offset any risk transferred to <snip> by clients.UNQUOTE
A better alternative is the currency futures on the CME:
http://www.cme.com/trading/prd/fx/index.htmlThe CME currency futures a CFTC regulated market like all other
US futures market.