Net manipulation refers to the fund's behavior of raising the price of its heavy stocks in a short time by virtue of its own financial advantages, thus improving its net worth and net worth ranking. Net worth manipulation is mainly to manipulate stock prices, especially the stock prices held by funds. In the last few minutes of the trading day, the fund raised its share price in the case of small trading volume, which greatly increased the net value of the fund (provided that the asset value of the fund was calculated at the closing price, and after the new accounting standards were implemented in China's fund industry in July 2007, the fund was all valued at the closing price of listed stocks). For example, if a fund holds 5 million shares of a stock and uses 500,000 yuan to raise the share price 1 yuan in the last few minutes before closing, its net value can increase by 5 million, and the proportion of funds used for net value growth is 1: 10.