固态电池概念股再度活跃，大东南4连板

Group 1 - The solid-state battery concept stocks have become active again, with Dazhongnan (002263) achieving a four-day consecutive rise [1] - Cangzhou Mingzhu (002108) has seen a three-day consecutive rise, while Pulutong (002769) has experienced a two-day consecutive rise [1] - Other companies such as Xinyu Ren and Zhonglun New Materials (301565) have also followed the upward trend [1] Group 2 - Dark pool fund flows have been revealed, indicating signals for early detection of stock accumulation by major investors [1]