Hedge funds
Hedge funds have gained a reputation for aggressive currency speculation since 1996. They control billions of dollars of equity and may borrow billions more, and thus may overwhelm intervention by central banks to support almost any currency, if the economic fundamentals are in the hedge funds' favor.
Retail forex brokers
Retail forex brokers
There are two types of retail broker: brokers offering speculative trading and brokers offering physical delivery i.e. the bought currency is delivered to a bank account.