These systems required as much as US$1 million to open an account. Thanks to advancements in online technology, today investors with only a few thousand dollars can have access to the Forex market 24 hours a day and around 5 ½ days of a week. The Forex market is a nonstop cash market where currencies of nations are traded, typically via brokers called forex brokers. Foreign currencies are constantly and simultaneously bought and sold across local and global markets while traders increase or decrease value of an investment upon currency movements. Foreign exchange market conditions can change at any time in response to real-time events so it is also considered to be a highly volatile and fragile market too. Conditions of the Forex market never remain the same they changes every second. The foreign exchange market dwarfs the combined operations of the New York, London, and Tokyo futures and stock exchanges.

According to its size and scope it is many times larger than all other markets. Stats shows that spot transactions and forward outright Forex trading take place in the inter-bank market. 51% of the market is in spot Forex transactions, followed by 32% in currency swap transactions. Forward outright Forex transactions represent another 5% of this daily turnover, with options on ‘interbank' Forex transactions making up another 8%. Therefore the inter-bank market accounts for 96% of the global foreign exchange market, with the remaining 4% being divided among all the global futures exchanges. For traders, Forex trading provides an alternative to stock market trading.

While there are thousands of stocks to choose from, there are only a few major currencies to trade (the Dollar, Yen, British Pound, Swiss Franc, and the Euro are the most popular). Forex trading also provides a lot more leverage than stock trading, and the minimum investment to get started is a lot lower. Add to that the ability to choose flexible trading hours (forex trading goes on 24 hours a day) and you have the reason why so many stock traders have flocked to day trade currencies