1. The price declaration system of an open futures exchange stipulates that the price of each new transaction reached by the exchange must be declared to members and their floor brokers in time and made public. Through developed media, traders can know the trading situation and price changes in the futures market in time, judge the price trend in time and further adjust their trading behavior. This constant adjustment of price expectation is finally reflected in futures prices, which further improves the authenticity of futures prices.

2. Futures price Futures contract is a kind of price signal that constantly reflects the relationship between supply and demand and its changing trend. Futures contracts change hands frequently, so that the emerging prices can constantly reflect the supply and demand situation and changes in the market.

3. High transparency of futures trading. The futures market follows the principles of openness, fairness and justice. Trading orders are matched in a highly organized futures exchange, and all futures contracts must be publicly traded on the futures exchange, and over-the-counter trading is not allowed. The free quotation and open competition of the exchange avoid the fraud and monopoly that are easy to occur in one-to-one spot trading.

4. There are many participants in futures trading with concentrated supply and demand and strong market liquidity, such as commodity producers, sellers, processors, importers and exporters and a large number of speculators. These hedgers and speculators gather together to compete through brokers, and the market liquidity of futures contracts is greatly enhanced, which overcomes the limitation of insufficient liquidity in the spot trading market and helps to form prices.