Clean up the warehouse and sell all the market terms. In modern times, clearance is mostly cargo handling to attract customers' attention and buy this product.

Delivery: the process of goods leaving the warehouse.

This is determined by the rules of futures trading. Unlike stocks, chips are fixed. Futures traders can open multiple orders or empty orders out of thin air at any time (as long as there are counterparties), so the number of futures contracts is constantly changing. The more active the trading, the more participants and the more new futures contracts. Due to the regulations of the exchange, the physical delivery of commodity futures can only be carried out by legal entities, and individuals cannot carry out physical delivery. And near the delivery month, in order to avoid the default of both parties, the margin ratio will be greatly increased than usual. Then before the delivery, on the one hand, all individual investors should close their positions, on the other hand, they should reduce their positions if the margin is insufficient. So most futures contracts will end early.