# China # China # Quantitative investment is to comprehensively use financial, mathematical and computer knowledge to discover market rules, high probability events and seek investment opportunities. "Simply put, quantitative investment is calculated by computer: time, price, economic indicators, market news, etc. When they meet the requirements of the model, they are automatically bought and sold. " According to the quotation updated several times per second, the computer keeps calculating, decides whether to increase or decrease the position, and calculates how much money is spent, whether it is earned or lost, and how much it is earned or lost. Take statistical arbitrage, a representative model of quantitative investment, as an example: two major vegetable markets in Chengdu are selling Chinese cabbage, and the prices in both markets are monitored in real time. If it is found that the price of Chinese cabbage in one market is 80 cents a catty and that in the other market is 70 cents a catty, then the freight between the two markets is 50 cents a catty. At this time, I can buy Chinese cabbage in one market and sell it in another market, and I can earn fifty cents per catty. "This is a simplified case of the basic principle of statistical arbitrage," he said.