[The top 20 US stock turnover: Pfizer suffered a double battle between weight-loss drugs and COVID-19 vaccine litigation] The 12th Pfizer Pharmaceutical closed down 5.12%, the largest one-day decline since December 2021, with a turnover of 2.982 billion US dollars. On Thursday, Texas Attorney General Ken Paxton sued the company for misrepresenting the effectiveness of its COVID-19 vaccine. It is reported that Pfizer used misleading statistics to promote its COVID-19 vaccine and tried to "intimidate" anyone who questioned the product. The Texas Attorney General has demanded that the judge impose a fine of over $10 million and order a ban on Pfizer publicly promoting the effectiveness of its vaccine.