精准医疗板块1月21日涨0.1%，迪安诊断领涨，主力资金净流入7998.53万元

Group 1 - The precision medicine sector increased by 0.1% compared to the previous trading day, with Di'an Diagnostics leading the gains [1] - The Shanghai Composite Index closed at 4116.94, up by 0.08%, while the Shenzhen Component Index closed at 14255.12, up by 0.7% [1] - The net inflow of main funds into the precision medicine sector was 79.9853 million yuan, while retail investors experienced a net outflow of 135 million yuan [1] Group 2 - The net inflow from speculative funds was 55.094 million yuan, indicating a positive sentiment among short-term investors [1] - A detailed table of individual stock fund flows within the precision medicine sector was provided, highlighting specific movements [1]