Stock CFDs were introduced in the 1990s by stock traders, allowing hedge fund clients to use high leverage to increase the risk of downside exposure. Another advantage to CFD is that there is no need to pay stamp duty. It was not until the late 1990s, with the rapid development of technology, that CFDs has received widespread attention, making CFDs a major market in the past decade. Because of the use of leverage, traders have the opportunity to perform speculative trading through leverage on highly volatile stocks in a short period of time. Currently, CFDs are widely used in multiple markets and are not limited to the stock market. Not only can professional traders use CFDs, but also for retail customers at home. According to relevant report statistics, more than 25% of the UK stock market's trading volume is CFD trading. Now Canada, Singapore and Eastern Europe have also started CFD trading.