Generally, external futures are not calculated by percentage, but by points. For example, 60 points for wheat, 70 points for soybean, 2.5 points for soybean oil, and so on. Sometimes the exchange will adjust when the market is extreme. For example, at the beginning of 10, the fluctuation range of American beans increased from 70 cents to 130 cents, and then adjusted to 70 cents after the market slowed down. Therefore, on different bases, the percentage of fixed increase and decrease is different.

OTC Futures (English, futures) are completely different from spot. Spot is actually a tradable commodity. Futures are mainly not commodities, but standardized tradable contracts with some bulk products such as cotton, soybeans and oil and financial assets such as stocks and bonds as the targets. OTC futures refer to futures trading in which the exchange is located outside Chinese mainland. The products of American, British and London exchanges are usually futures contracts. Some American futures contracts, such as soybeans and copper, will have an impact on domestic futures prices. Domestic investors can refer to the external market. Large producers and traders can also hedge spot trading losses according to the external market. At present, the well-known foreign futures forum in China is the speculators forum.