长光华芯：股票交易异常波动公告

Group 1 - The core point of the article is that Changguang Huaxin announced a significant stock price fluctuation, with a cumulative increase of 30% over two consecutive trading days on December 5 and December 8, 2025, indicating abnormal trading activity [1] - The company has advised investors to be cautious regarding the risks associated with trading in the secondary market due to the short-term surge in stock price [1] - As of the date of the announcement, the company confirmed that there are no undisclosed significant matters related to its operations [1]