Low level means that the futures price becomes a low level near the lowest price. If it is near the highest price, it is called a high level. For example, the highest price of ginger is 40 yuan and the lowest is 12 yuan. The current price is 14 yuan. It is called a low level. If the price is near 38, it is considered a high level.

Futures shock means that futures repeatedly consolidate and fluctuate up and down within a certain range.

The low price shock is fluctuating up and down near the lowest price.