Diversifying risks mainly means not putting vegetables on one plate, just as you don't spend all your money on stock trading, such as low-risk bank deposits and high-risk stocks and futures. Simply put, the stock market is to invest money in different fields, such as commerce, transportation, chemical industry, especially this year's concept of resource stocks and so on. But even if you are optimistic, don't invest all your money. A good portfolio will bring you long-term stable returns and offset some risks of investment failure. Avoid mental troubles caused by skyrocketing and plunging.