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 Unitedhealth group, USA: The suspect in the executive shooting was not a corporate client. On December 13th, a spokesman for unitedhealth group said that Luigi Man Ghione, the suspect in the shooting of Brian Thompson, CEO of United Health Insurance Company, was not a corporate client. Andrew Vitti, CEO of unitedhealth group, expressed his condolences over Thompson's murder in a commentary and said that he understood the public's dissatisfaction with the "defective" health care system in the United States. Vitti said: "Health care is both a personal matter and very complicated. People don't fully understand the reasons behind the underwriting decision, and we are responsible for it. We need to work with employers, governments and other people who pay for medical expenses to improve the way we explain insurance coverage and make decisions. "Brazilian President's Office: Brazilian President Lula recovered well after surgery, and his speech and diet were normal.

The Nasdaq 100 index rose 1% and the S&P 500 index rose 0.4%.Jiaying Pharmaceutical Co., Ltd.: It plans to buy back 7 million to 13.5 million shares. Jiaying Pharmaceutical announced that it plans to use its own funds to buy back some issued RMB common shares (A shares) by centralized bidding for the implementation of employee stock ownership plan or equity incentive. The price of repurchased shares is not higher than 9.80 yuan/share (inclusive), and the number of shares to be repurchased is not less than 7 million shares (inclusive), accounting for about 1.3793% of the company's total share capital; And no more than 13.5 million shares (inclusive), accounting for about 2.6600% of the company's total share capital. The repurchase period is within 12 months from the date when the company's board of directors deliberated and approved the share repurchase plan.Lianchuang Optoelectronics: It is planned to terminate the acquisition of Lianchuang Superconductor's equity. Lianchuang Optoelectronics announced that the company originally planned to realize the merger of Lianchuang Superconductor through capital increase and acquisition of a small number of equity. However, during the reply, it was found that there were significant differences between the financial data of Lianchuang Superconductor in 2023 and the 2023 annual report disclosed by Yinggu, the parent company of Ningxia Xuying, which mainly involved the issue of revenue recognition. In addition, the validity period of Lianchuang Superconducting Audit Report and Asset Appraisal Report will expire soon, and it needs to be re-audited and re-evaluated if the transaction continues. By the end of October 2024, Lianchuang Superconductor had achieved an operating income of 45.2084 million yuan, a net profit of-13.1177 million yuan and a net profit of-14.7016 million yuan, which was far from the annual target of the 2024 performance forecast data calculated in the previous asset appraisal report. Based on the principle of prudence, in order to protect the interests of listed companies and investors, the company intends to decide to terminate the above transactions.

Zhao Xiongwen, a famous expert in communication field and a professor at North China Electric Power University, died of illness at the age of 61. (澎湃)Market News: The European Central Bank will release the data of the Emergency Anti-epidemic Bond Purchase Program (PEPP) once a month from January 8 next year.Maiwell Technology rose more than 11% to a record high, and announced a breakthrough in customized high-bandwidth memory. Maiwell Technology rose more than 11% in intraday trading to US$ 121.86, with its share price reaching a record high and its market value exceeding US$ 100 billion. Maywell Technology announced on Wednesday that the company has made a breakthrough in customized high-bandwidth memory (HBM) for artificial intelligence processors. It is reported that the new artificial intelligence accelerator architecture (XPU) will increase computing power by 25%, memory by 33%, and improve energy efficiency. The company is cooperating with Micron Technology, Samsung and SK Hynix to customize HBM processors for accelerators.