I think I can only know more about the domestic market because I work in the American stock market. There are indeed Chinese in the United States who are making quantitative investments in China's domestic market. But these people are relatively low-key, such as renting an office in the economic and trade building, but they don't talk about what they are doing. I also know some friends who have made quantitative investments in Guangzhou for four or five years.

I think it is feasible to simply quantify the investment, but there are many influencing factors depending on the expectation and probability. Mainly used for CTA, of course, the model will be more complicated and there will be more tools (such as the price difference between two indexes, cross-regional and so on). This relatively low-frequency quantitative investment can be transplanted to the domestic secondary market. Many people mistakenly think that a lot of insider trading and market manipulation will hinder quantitative investment, but it is not. The biggest enemy of quantitative investment is efficient market, and it is most afraid of completely efficient market. As long as the information disclosed by the exchange is timely and there are always people in the market, then quantitative investment can be done.

In addition, the statistical method of back test based on quantitative indicators is far from being widely used in China, and most investors adopt the strategy of following the trend or K-line chart. It is precisely because few people buy and sell stocks in this way that this way is really efficient in China, achieving high returns and low risks. As far as I know, domestic Jingdong Finance has also started to do it this year. In addition, the quantitative strategies of profit organizations and Cat's Paw APP are also very leading.

Finally, I think the high-frequency trading popular in Britain and America is not feasible in China at present because the handling fee is too high.