The futures contract price is negative. In China futures market, the benchmark price is the purchase cost or production cost plus a certain profit in a certain period. This benchmark price is usually called "basis", "negative 2 10", "negative 1", "negative 33" and other expressions indicate that the basis is negative relative to the futures contract price. The negative price of live pig futures means that the current futures price is lower than the benchmark price, so it is called "negative price".