Many forex traders start with a simple trading strategy. For example, they may notice that a specific currency pair tends to rebound from a particular support or resistance level. They may then decide to add other elements that improve the accuracy of these trading signals over time. For instance, they may require that the price rebound from a specific support level by a certain percentage or number of pips.
Currency markets are important to a broad range of participants, from banks, brokers, hedge funds and investor traders who trade FX. Any company that operates or has customers overseas will need to trade currency. Central banks can also be active in currency markets, as they seek to keep the currency they are responsible for trading within a specific range.