Let's take a look at the trend chart of Sichuan Shengda 000835 from November 2008 to April 2009. From the recent five months' trend, its overall increase is not significant, but the main force adopts a volatile upward strategy to manipulate the stock and also make profits, as shown in Figure 3.

Although the overall increase of Wuliangye from November 2008 to April 2009 was not significant, the main force also adopted a shake up strategy to boost the stock price, and its profits were also substantial, as shown in Figure 4