万泰生物竞价触及涨停

Group 1 - The core point of the article is that Wantai Biological (603392) has reached its daily limit increase in stock price due to the approval of its wholly-owned subsidiary's nine-valent human papillomavirus vaccine for market launch [1] Group 2 - The news indicates that there is a significant inflow of dark pool funds into certain stocks, suggesting increased investor interest and potential market activity [1]