精准医疗板块2月24日跌0.47%，迪安诊断领跌，主力资金净流出4.2亿元

Group 1 - The precision medicine sector experienced a decline of 0.47% compared to the previous trading day, with Di'an Diagnostics leading the drop [1] - On the same day, the Shanghai Composite Index closed at 4117.41, up by 0.87%, while the Shenzhen Component Index closed at 14291.57, up by 1.36% [1] - The net outflow of main funds in the precision medicine sector was 420 million yuan, while retail investors saw a net inflow of 382 million yuan [1] Group 2 - The net inflow of funds from speculative investors was 38.41 million yuan on that day [1] - A detailed table of individual stock fund flows in the precision medicine sector was provided, indicating varied performance among stocks [1]