Efficiency (a 24-hour market).

The main advantage of the Forex market over the stock market and other exchange-traded instruments is that the Forex market is a true 24-hour market. Whether it's 6pm or 6am, somewhere in the world there are always buyers and sellers actively trading Forex so that investors can respond to breaking news immediately. In the currency markets, your portfolio won't be affected by after hours earning reports or analyst conference calls. Recently, after hours trading has become available for U.S. stocks - with several limitations. These ECNs (Electronic Communication Networks) exist to bring together buyers and sellers when possible. However, there is no guarantee that every trade will be executed, nor at a fair market price. Quite frequently, stock traders must wait until the market opens the following day in order to receive a tighter spread. A trader may take advantage of all profitable market conditions at any time; no waiting for the 'opening bell'.