During the callback process of the currency in the rising stage, the reduction of trading volume, especially to the level before the band started, is usually considered to be a signal of bottoming out and possible rebound. It can be understood as follows:

Trading volume as an indicator of trading activity: Trading volume reflects the trading activity of the currency. In the absence of large funds, the trading volume between retail investors usually fluctuates around a relatively stable "fixed value", which represents the normal market trading activity.

Signal of sudden increase in volume: When the trading volume suddenly increases on a certain day, reaching several times the "fixed value", and the currency price rises sharply, it usually means that the dealer or large funds begin to intervene and quickly raise the currency price. In addition to sudden good news, this situation is mostly caused by the entry of dealers.

Retail investors chase the rise, and the trading volume is further enlarged: As the currency price rises, retail investors begin to follow suit, resulting in a further increase in daily trading volume. This is a manifestation of high market sentiment, and dealers also use this stage to attract more retail investors to enter the market.

Key callback stage: When dealers decide to start washing the market, they usually smash the market to create panic, forcing retail investors who chase the rise to cut their losses and leave the market. At this time, the daily trading volume will gradually shrink, and the price of the currency will also begin to fall. As time goes by, when the daily trading volume gradually shrinks to the "fixed value" before the pull-up starts, it means that those floating chips (retail investors chasing the rise) have been almost cleared, and the dealer has regained control of the market. At this time, the dealer may start the next wave of pull-ups.

Therefore, by comparing the daily trading volume during the callback period with the trading volume before the start, it is an effective and practical method to judge whether the currency price has bottomed out and is about to rebound.

The trend of mew in the past two days is worth noting.