1月21日生物经济（970038）指数涨0.3%，成份股迪安诊断（300244）领涨

Group 1 - The Biotech Index (970038) closed at 2249.37 points, up 0.3%, with a trading volume of 27.277 billion yuan and a turnover rate of 2.27% [1] - Among the index constituents, 28 stocks rose, with Dean Diagnostics leading at a 5.59% increase, while 22 stocks fell, with Kanghong Pharmaceutical leading the decline at 1.78% [1] - The top ten constituents of the Biotech Index include major companies such as Mindray Medical, which has a weight of 14.57% and a market cap of 236.79 billion yuan, and other notable firms like Tigermed and Changchun High-tech [1] Group 2 - The net inflow of main funds into the Biotech Index constituents totaled 423 million yuan, while retail investors saw a net outflow of 609 million yuan [3] - Detailed fund flow data shows that Deep Technology had a main fund net inflow of 187 million yuan, while retail investors experienced a net outflow of 92.73 million yuan [3] - Other companies like Watson Bio and Huada Gene also experienced varying levels of fund inflow and outflow, indicating diverse investor interest across the sector [3]