广电计量：股票交易异常波动 公司近期生产经营情况正常

Group 1 - The stock price of Guangdian Measurement Testing Group Co., Ltd. has deviated by a cumulative increase of 20.54% over three consecutive trading days, indicating abnormal trading fluctuations [1] - The company has not identified any recent public media reports that could have significantly impacted its stock trading price with undisclosed major information [1] - The company's recent production and operational conditions are normal, and there have been no significant changes in the internal and external operating environment [1] Group 2 - The company, its controlling shareholders, and actual controllers have no undisclosed major matters related to the company or any significant matters in the planning stage [1] - During the period of abnormal stock trading fluctuations, the controlling shareholders and actual controllers did not buy or sell the company's stock [1]