One of the most unique features of the forex market is that it is comprised of a global network of financial centers that transact 24 hours a day, closing only on the weekends. As one major forex hub closes, another hub in a different part of the world remains open for business. This increases the liquidity available in currency markets, which adds to its appeal as the largest asset class available to investors.
For example, if Company A is based in the U.S. and wishes to use the EUR/USD trading pair to buy Euros to pay employees located in Europe, they would tap the forex market. However, if the price quote rapidly changes between several hours and Company A is set to exchange a large sum of USD for EUR, then a small adverse price fluctuation could have a significant impact on their bottom line.
At FXCM, we strive to give you the best trading experience. We offer access to the global forex trading market, with intuitive platform options, including our award-winning Trading Station. We also provide forex education, so whether you're just getting started in the exciting world of forex trading, or you just want to sharpen the trading tools you've developed over the years, we're here to help. Our customer service team, one of the best in the industry, is available 24/5, wherever you are in the world.
So, yes, at any given trading center, it's an eight hour day. But that really doesn't matter, because somewhere in the world trading centers are open. You can trade anytime you want, although you should also note that you'll get the narrowest spreads -- the broker's profit margin -- when the maximum number of trading centers are open or, more precisely, when the trading volume for your currency trade is greatest. 
NinjaTrader Group, LLC Affiliates: NinjaTrader, LLC is a software development company which owns and supports all proprietary technology relating to and including the NinjaTrader trading platform. NinjaTrader Brokerage™ is an NFA registered introducing broker (NFA #0339976) providing brokerage services to traders of futures and foreign exchange products.
Fluctuations in exchange rates are usually caused by actual monetary flows as well as by expectations of changes in monetary flows. These are caused by changes in gross domestic product (GDP) growth, inflation (purchasing power parity theory), interest rates (interest rate parity, Domestic Fisher effect, International Fisher effect), budget and trade deficits or surpluses, large cross-border M&A deals and other macroeconomic conditions. Major news is released publicly, often on scheduled dates, so many people have access to the same news at the same time. However, large banks have an important advantage; they can see their customers' order flow.
In the futures market, futures contracts are bought and sold based upon a standard size and settlement date on public commodities markets, such as the Chicago Mercantile Exchange. In the U.S., the National Futures Association regulates the futures market. Futures contracts have specific details, including the number of units being traded, delivery and settlement dates, and minimum price increments that cannot be customized. The exchange acts as a counterpart to the trader, providing clearance and settlement.
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