芬太尼概念涨1.24%，主力资金净流入4股

Group 1 - The fentanyl concept sector increased by 1.24%, ranking second in terms of sector gains, with one stock, Botao Bio, hitting a 20% limit up [1][2] - The main stocks in the fentanyl sector experienced mixed performance, with notable declines in Renfu Pharmaceutical, Oriental Bio, and Guoyao Modern, which fell by 3.16%, 2.59%, and 1.23% respectively [1][2] Group 2 - The fentanyl concept sector saw a net inflow of 50 million yuan, with four stocks receiving significant inflows, led by Botao Bio with a net inflow of 51.6459 million yuan [2][3] - The net inflow ratios for Botao Bio, Oriental Bio, and Wanfu Bio were 11.85%, 5.85%, and 5.04% respectively, indicating strong interest from main funds [3]