The principle of financial pyramid is: the bottom is wider and more stable, which is the cornerstone of establishing financial planning, including financial products with less risk, such as savings, insurance, national debt, etc. The middle level is the middle level of maturity, risk and return, such as corporate bonds, financial bonds, preferred stocks, various funds, etc. Aggressive investment products, such as real estate, stocks and futures. Narrow top, less investment, more risks and relatively high returns.