Extended data:
Basic characteristics of hedging
In the spot market and futures market, the same commodity is bought and sold at the same time in the same amount but in the opposite direction, that is, the same amount of futures is sold or bought at the same time in the futures market. After a period of time, when the price changes make profits and losses in spot trading, the losses in futures trading can be offset or compensated. So as to establish a hedging mechanism between "now" and "period" and between near and far, and minimize the price risk.
theoretical basis
The trends of spot and futures markets converge (under normal market conditions). Because these two markets are affected by the same relationship between supply and demand, prices rise and fall together. However, due to the opposite operation of these two markets, the profit and loss are also opposite, and the profit of the futures market can make up for the loss of the spot market.