688585，尾盘狂拉！

Core Viewpoint - The stock price of the company, Lingwei New Materials, experienced a significant fluctuation, rising over 4% after previously dropping more than 4% before noon on November 11 [1]. Group 1: Stock Performance - Lingwei New Materials' stock price surged over 4% by midday after a prior decline of more than 4% [1]. Group 2: Business Development - The company has launched a WeChat public account named "Zhiyuan Lingwei" and released promotional materials for a robot concept product, indicating a new business venture in robotics [2]. - Lingwei New Materials is set to collaborate with Zhiyuan to develop its robotics business [2].