The stocks with concentrated chips are few shareholders, and most of the stocks are in the hands of funds, large households and middle households. This type of stock is usually concerned by social security funds, cemetery funds or private equity funds. These fund companies buy such stocks in large quantities, which must have been thoroughly studied and have great investment value. If you buy it later, the return on investment will be huge, and the institution will help you lift the sedan chair. How to understand this type of stock? Look for stocks with good fundamentals and stories supported by national policies. There is little or a certain increase in the previous period, and those who were killed by mistake when the market fell can be concerned.