Some facts about FOREX
Currency Exchange Profits
Swap: The most common type of forward transaction is the currency swap. In a swap, two parties exchange currencies for a certain length of time and agree to reverse the transaction at a later date. These are not standardized contracts and are not traded through an exchange.
The profit potential comes from the fluctuations (changes) in the currency exchange market.
Trade Balance. Department of Commerce; the second week of each month, 8:30am EST, covers month before previous data.