The demand zone is where the main capital repeatedly supports the position. Every time the price pulls back here, it attracts a large amount of buying, indicating strong buyer willingness.

When making judgments, consider the trading volume: if there is an increase in volume near the demand zone, it indicates that large capital is being involved, and the probability of a rebound is high.

Conversely, if there is a decrease in volume when the price falls back to the demand zone, but there is an increase in volume when it rises again, this is often a characteristic of main capital control.

In actual operations, only the resonance of the demand zone and high trading volume has intervention value. Demand zones without volume or main capital support are likely to be lost, so do not blindly catch falling knives.