10月28日生物经济（970038）指数跌0.16%，成份股美亚光电（002690）领跌

Core Points - The Bioeconomy Index (970038) closed at 2277.51 points, down 0.16%, with a trading volume of 18.883 billion yuan and a turnover rate of 1.2% [1] - Among the index constituents, 23 stocks rose while 27 fell, with Iwubio leading the gainers at 6.71% and Meiya Optoelectronics leading the decliners at 3.02% [1] Index Constituents Summary - The top ten constituents of the Bioeconomy Index include: - Mindray Medical (sz300760) with a weight of 13.81%, latest price at 225.09 yuan, and a market cap of 272.908 billion yuan [1] - Changchun High-tech (sz000661) with a weight of 5.41%, latest price at 116.50 yuan, and a market cap of 47.525 billion yuan [1] - Kanglong Chemical (sz300759) with a weight of 4.66%, latest price at 31.97 yuan, and a market cap of 56.849 billion yuan [1] - Other notable constituents include Shishihistory (sz002252), Table Pharmaceutical (sz300347), and Muyuan Foods (sz002714) [1] Capital Flow Analysis - The Bioeconomy Index constituents experienced a net outflow of 871 million yuan from institutional investors, while retail investors saw a net inflow of 544 million yuan [3] - Key capital flows include: - Iwubio (300357) with a net inflow of 52.9277 million yuan from institutional investors [3] - Dabo Medical (002901) with a net inflow of 31.8434 million yuan from institutional investors [3] - Changchun High-tech (000661) with a net inflow of 27.6452 million yuan from institutional investors [3]