焦炭板块1月27日跌2.58%，云煤能源领跌，主力资金净流出1.09亿元

Group 1 - The coking coal sector experienced a decline of 2.58% on January 27, with Yunmei Energy leading the drop [1] - The Shanghai Composite Index closed at 4139.9, up 0.18%, while the Shenzhen Component Index closed at 14329.91, up 0.09% [1] - Key stocks in the coking coal sector showed varied performance, with Yunmei Energy closing at 4.02, down 4.74%, and Shanxi Coking Coal at 4.00, down 3.38% [1] Group 2 - The net outflow of main funds in the coking coal sector was 109 million yuan, while retail investors saw a net inflow of 62.67 million yuan [1] - Detailed fund flow data indicates that major stocks like Yunmei Energy and Meijin Energy experienced significant net outflows from main funds, with Yunmei Energy seeing a net outflow of 5.42 million yuan [2] - Retail investors showed a positive net inflow in several stocks, with An Tai Group receiving a net inflow of 48.97 million yuan [2]