There must be a difference in price. A spot commodity reflects the current relationship between supply and demand, while futures reflect the future price. In addition, the futures market is a financial market, and funds play a great role. As long as there is sufficient funds, the price can be maintained for a short time, and the futures price is far greater than the spot price. As for the short-selling main force, it will strategically withdraw under unfavorable circumstances, not as fast as the spot rise, but it may also develop into a bull market, which is tepid. Spot rose slightly, spot did not rise, futures fell, spot fell and futures plummeted.