Currency carry trade refers to the act of borrowing one currency that has a low interest rate in order to purchase another with a higher interest rate. A large difference in rates can be highly profitable for the trader, especially if high leverage is used. However, with all levered investments this is a double edged sword, and large exchange rate price fluctuations can suddenly swing trades into huge losses.
Along with being able to access a wide range of financial markets, another benefit of trading CFDs is that a trader can access a much larger portion of those markets, and increase their potential profits as a result. CFD contracts provide leveraged access to the market, meaning a trader can access a much larger portion of the market than what they would be able to purchase outright.
This information can then allow traders to make judgements regarding a currency pair's price movement. For example, if a Japanese candlestick closes near the highest price for the period, that would imply that there is a strong interest on the part of buyers for this currency pair during that time period. A trader might then decide to open a long trade to take advantage of that interest.
Unlike stock markets, which can trace their roots back centuries, the forex market as we understand it today is a truly new market. Of course, in its most basic sense - that of people converting one currency to another for financial advantage - forex has been around since nations began minting currencies. But the modern forex markets are a modern invention. After the accord at Bretton Woods in 1971, more major currencies were allowed to float freely against one another. The values of individual currencies vary, which has given rise to the need for foreign exchange services and trading.