Generally, small institutions with major capital flows hold the circulation disk with a small speculation target of about 7% lower, and large institutions should hold shares in more than 13% sub-accounts.

such funds, which have a relatively large amount of funds and will have a great impact on the stock price of individual stocks, are collectively referred to as main funds, including private equity funds, Public Offering of Fund, social security, pensions, central huijin, securities funds, foreign capital (QFII, northbound funds), funds of brokerage institutions, hot money and major shareholders of enterprises. Among them, one of the main funds that are more likely to cause fluctuations in the entire stock market must be the northbound funds and the funds of brokerage institutions.