forex

The foreign exchange (currency or forex
or FX) market exists wherever one currency
is traded for another. It is by far the
largest financial market in the world,
and includes trading between large banks,
central banks, currency speculators,
multinational corporations, governments,
and other financial markets and institutions.
The average daily trade in the global forex
and related markets currently is over US$
3 trillion.[1] Retail traders (individuals)
are a small fraction of this market and may
only participate indirectly through brokers
or banks, and are subject to forex scams[2] [3].