ABCDE [Analysis] Early personal financial investment tools were limited to bank deposits, stocks, funds, bonds, foreign exchange, real estate and so on. , and the trading method can only be one-way long. In recent years, the financial market has been expanding, and innovative financial instruments such as stock index futures, margin financing and securities lending, money market instruments, QDII funds, private equity investment, asset securitization products, treasury bonds futures and refinancing have been gradually added to help the public achieve global allocation and long-short two-way operation.