In recent years, with the continuous development of the securities market, financial derivatives are constantly introduced, short-selling tools are constantly enriched, the complexity of investment is also increasing, and the investment strategy and profit model have undergone fundamental changes, resulting in corresponding changes in the proportion of investors in the securities market. The proportion of professional investment managers is increasing, and it is accelerating. Among them, the quantitative hedging investment strategy with the goal of pursuing absolute expected annualized income has become one of the main investment strategies of institutional investors with its low risk and stable expected annualized income. The so-called "quantitative hedging" is actually a combination of the two concepts of "quantification" and "hedging". Through comparison and summary, Yale Fortune thinks the following statement is the most intuitive: "Quantitative" investment is different from traditional "qualitative" investment. Quantitative investment seeks all kinds of "high probability" strategies that can bring unexpected annualized returns from massive historical data through statistical and mathematical means, and guides investment in strict accordance with the quantitative model constructed by these strategies, and strives to achieve stable, sustainable and above-average excess returns. Its essence is the quantitative practice of qualitative investment. It can be seen that all products (including ordinary Public Offering of Fund, hedge funds, etc. ) this kind of quantitative investment strategy can be classified as quantitative fund. The biggest feature of quantitative investment is that it emphasizes discipline, that is, it can overcome the influence of investors' subjective emotions. The concept of "hedging" was first put forward by Alfred W. Jones when 1949 founded the first hedge fund. He believes that "hedging" is to deal with the changes in financial markets by managing and reducing the risks of the portfolio system. Broadly speaking, it is difficult to define hedge funds themselves. Generally defined as the use of futures, options and other financial derivatives and related different stocks for long and short operations to prevent or reduce risks and lock in income. ?