Besides the banks, which usually trade for large customers, large international corporations have trading desks that trade Forex as a means of hedging their costs of exports and/or imports of goods and services.
Often this type of trading can also be done in the futures market. In addition, there are many brokerages that offer Forex trading for individual traders.
Forex trading is largely speculative, and because the Forex market is so liquid, traders can buy and sell currencies almost instantaneously and, therefore, manage their trades efficiently.
Nearly 90% of all Forex trading is speculative trading. Trading in Forex is done using both technical and fundamental analysis.