Arbitrage refers to buying and selling two different futures contracts at the same time. Traders buy the contract they believe is "cheaper" and sell the contract they believe is "higher", profiting from the price changes of the two contracts. In an arbitrage trade, traders focus on the relative price of a contract rather than the absolute price level. It can be divided into risk-free arbitrage and low-risk arbitrage. Risk-free arbitrage involves very complex mathematical analysis models and is beyond the scope of this article. There are many cases of low-risk arbitrage in daily transactions, and their use value is high. Arbitrage is divided into technical arbitrage and theme arbitrage.

There are three types of theme arbitrage: catch-up arbitrage. When the theme of a certain stock has symbolic meaning and the rise is very exaggerated, stocks with the same theme, the same region, and relatively stagflation always have relatively large room for catching up and relatively small risk of retreat, so it is not advisable to buy in large quantities. . Dispersed arbitrage, when the theme category is large, the hype market will have plasticity and diffusion. The hype category will expand to the upstream and downstream of the theme. Although the diffusion strength of substitutes is usually greater than the strength of the theme, it can be The first step in latent assets is stocks that can often yield very good short-term profits and low risk. Internal arbitrage and external arbitrage.

Since the 2013 China Growth Stock Feast, the high-growth speculation in the stock market has followed the same trend as the concept of the US stock market, as have themes such as mobile games, welfare lotteries, film and television production, and microorganisms. There is a strong correlation between Chinese and American growth stocks.

The main point of arbitrage is that the stock is not just a general catch-up, so it is necessary to choose the strongest, clean sector with moderate size and eye-catching marks. Hot mistakes will reduce profits, and it is best to buy stocks at their daily limit. When it comes to market intervention or the next intervention of the stock's daily limit, acting in advance is not the best strategy. The increase in diffusion area is not easy to exceed the increase in the leading area, so the general return on investment is 30%-50% after the increase in the leading area. Due to the time difference between inside and outside the market, there is a lag in linkage. As a result, the place and price of buying are more important. When the stock market weakens, it will often open higher and move lower.