Guanhao Biotech (300238.SZ), which rose by the daily limit of 20 centimeters yesterday, dropped more than 11%, ranking first in the market's decline. It is currently trading at 10.47 yuan, with a total market value of less than 3 billion yuan. Guanhao Biotech announced after the market closed yesterday that the cumulative deviation of the closing price of the company's stock for three consecutive trading days from August 29th to September 2nd has reached 30%, causing abnormal fluctuations in the trading of the company's stock, and no significant undisclosed information has been found. It is worth noting that the company's half-year revenue and net profit have both declined, and more than 20% of the shares have been pledged.