Contracts for difference (CFD) are a complex and high-risk financial derivative product. There is no reliable way to ensure the rapid doubling of funds. On the contrary, it contains huge risks, which may lead to rapid and huge losses and seriously endanger the safety of personal property. CFD trading has the characteristics of high leverage. Although it may amplify profits, it also exponentially amplifies the probability of loss. The market is unpredictable, and there are many factors that affect price fluctuations and it is difficult to predict accurately. Once the judgment is wrong, it may suffer significant losses in a short period of time. At the same time, such transactions are not protected by law in China, and there is a lack of effective supervision and guarantee mechanisms. It is not recommended to participate in CFD trading to seek a rapid doubling of funds. A sound investment strategy and reasonable asset allocation are the more reliable ways of financial management. If you are interested in investment, it is recommended to carefully plan investment activities through formal financial institutions and channels on the basis of full learning and understanding of risks.