There is indeed a certain degree of security in choosing well-known large companies to invest, but this is not absolute. advantage： -Large companies usually have a stable business model and cash flow -High transparency of information and more reliable financial reports -Strong risk resistance -Brand value and market share have been established But factors to consider： 1. Large companies may have limited room for growth, and the rate of return may not be high 2. Well-known companies with high market capitalization may have been overvalued 3. Large companies will also face the risk of disruptive innovation and market changes 4. Industry cycles and macroeconomic fluctuations also have an impact on large companies A more robust financial management strategy is： -Diversified asset allocation -Consider your own risk tolerance -Long-term investment rather than short-term speculation -Focus on the balance between valuation and growth It is recommended to do sufficient research before investing, or consider diversifying risks through index funds and other methods.