期货交易包括套期保值交易和投机交易。套期保值是指利用现货与期货价格趋于同向运动的规律,遵循“均衡而相对”的原则,在期货市场进行买进(或卖出)与现货市场数量相当、但交易方向相反的期货合约,从而利用一个市场的盈利来弥补另一个市场的亏损,在价格波动方向不明确的情况下, Futures transactions include hedging and speculative trading. Hedging refers to the use of the trend of spot and futures prices tend to move in the same direction, follow the “balanced and relative” principle, in the futures market to buy (or sell) and the spot market a considerable number, but the opposite direction of futures Contract, so as to make use of the profits of a market to make up for the loss of another market, in the case of price volatility is not clear,