U.S. Stock Market Midday Update: Jinxin Tech plummets 17.07%, trading volume surges, market volatility significantly increases

U.S. Stock Market Midday Update Jinxin Tech, down 17.07%, with increased trading volume and no significant news recently. The trading is active, with clear capital flow. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. Stocks with High Trading Volume in the Industry Duolingo, up 0.89%, with a trading volume of $58.79 million and increased trading volume, and no significant news recently. The trading is active, with clear capital flow. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. Adtalem, up 3.44%, with active trading. Based on recent key news: On December 15, Adtalem announced the completion of a $150 million stock repurchase plan and approved a new $750 million repurchase authorization. This move demonstrates the company's confidence in its strategic direction and financial condition, driving the stock price up. On December 15, the company stated that the new repurchase plan will last until 2028, emphasizing its strong cash flow and growth investment capabilities, further boosting market confidence. On December 15, Adtalem has returned $913 million to shareholders since February 2022, repurchasing 17.2 million shares at an average price of $52.95, demonstrating the company's ongoing shareholder return strategy. The education sector has frequent repurchase plans, with clear capital inflow. K12 International School, up 4.69%. Based on recent key news: On December 14, Stride/K12 was accused of misusing public funds, with Gallup-McKinley County Schools engaged in litigation to recover taxpayer funds. This legal dispute may affect investor confidence, leading to stock price volatility. Source: Gallup-McKinley County Schools On December 16, Hagens Berman Law Firm is investigating potential fraudulent activities related to registration indicators, which may lead to significant losses for investors. This investigation serves as a reminder for investors to be aware of potential market risks. Source: Hagens Berman Sobol Shapiro LLP On December 15, Stride Inc. was sued for violations of securities laws, with multiple law firms calling for investors to join a class action lawsuit. This legal challenge may negatively impact the company's reputation and stock price. Source: DJS Law Group LLP The education sector faces legal risks and requires cautious observation. Stocks with High Market Capitalization in the Industry Pearson, down 0.36%, with a market capitalization of $8.862 billion and increased trading volume, and no significant news recently. The trading is active, with clear capital flow. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation