焦炭板块11月28日涨1.95%，云维股份领涨，主力资金净流入2569.67万元

Group 1 - The core viewpoint of the news is that the coke sector experienced a rise of 1.95% on November 28, with Yunwei Co., Ltd. leading the gains [1] - On the same day, the Shanghai Composite Index closed at 3888.6, up by 0.34%, while the Shenzhen Component Index closed at 12984.08, up by 0.85% [1] Group 2 - In terms of capital flow, the coke sector saw a net inflow of 25.6967 million yuan from main funds, while speculative funds experienced a net outflow of 33.8512 million yuan, and retail investors had a net inflow of 8.1545 million yuan [2] - Detailed capital flow for individual stocks in the coke sector is provided in a table [2]