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The reasons for the price difference are complicated. For example, the geographical environment is different, the relationship between supply and demand is different, the labor price is different, and the culture is different. And mastering the law of price difference seems to be a necessary condition for businessmen to make profits. The price difference sometimes manifests as a premium, and sometimes it is a premium. Hedging profit is a kind of market trading method that makes use of the price difference between futures contracts to make profits. The key factor of arbitrage is the change of price difference. The spread will expand and shrink, but when the spread between two futures contracts is abnormal, it provides an arbitrage opportunity for traders. The difference in price is related to profit. The real difficulty for arbitrageurs is how to capture the biggest difference in prices under the same trend.
For cross-month arbitrageurs, when the spread is greater than the holding cost, it is a good trading opportunity; For cross-market arbitrageurs, what affects the spread is the transportation cost and the variety and grade of delivery goods clearly stipulated by each exchange; For cross-commodity arbitrageurs, it is necessary to know the "normal" price difference relationship between two related commodities in order to use higher or lower "normal" price difference to carry out arbitrage transactions. Arbitrage, also known as hedging profit, refers to foreign exchange transactions in which funds are transferred from countries or regions with lower interest rates to countries or regions with higher interest rates to make investments in order to obtain spread income. Futures market arbitrage refers to buying and selling two different futures contracts at the same time. In arbitrage trading, investors are concerned about the mutual price relationship between contracts, not the absolute price level. Investors buy contracts they think are undervalued by the market and sell contracts they think are overvalued by the market. If the price change direction is consistent with the original forecast; That is, the price of the buying contract is higher and the price of the selling contract is lower, so investors can benefit from the change of the relationship between the two contract prices. On the contrary, investors will lose money.