During the National Day, the overall purchase volume of the fruit market increased, especially the increase in fruit sales in gift boxes. The red jade watermelon has always been known as the gift watermelon, so the sales volume has risen. The market has been in short supply, and thus the price has risen as well.
With the end of the National Day, consumer demand for red jade watermelon falls and the quality and taste deteriorate later in the season, so the price will drop.
Source: Henan Wanbang International Market