U.S. stock market intraday update: A significant drop of 15.46% without major news, does the capital flow reveal the secrets of market sentiment fluctuations?

U.S. Stock Market Midday Update mF, down 15.46%, with increased trading volume and no significant news recently. Trading is active, with clear capital flows. Considering sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. Stocks with High Trading Volume in the Industry Robinhood down 5.01%. Based on recent key news: On December 4, Connecticut issued a cease and desist notice to Robinhood, accusing it of engaging in unlicensed sports betting activities. This raised market concerns about its compliance risks, leading to a drop in stock price. Source: Jinse Finance On December 3, Robinhood announced the launch of AI trading tools and prediction market contracts on December 16, increasing trading options for retail users. Although this news may be beneficial for long-term development, it failed to boost the stock price in the short term. Source: Jinse Finance On December 5, analysts rated Robinhood as a moderate buy but did not include it in the top five recommended buy stocks, indicating a cautious market attitude towards its future performance. Source: MarketBeat. The market remains vigilant about compliance risks, with noticeable capital outflows. Goldman Sachs up 1.34%, with increased trading volume. Based on recent key news: On December 5, Goldman Sachs suspended the $1.3 billion mortgage bond sale for CyrusOne due to a significant outage at the Chicago Mercantile Exchange. This event raised investor concerns about the stability of data centers, affecting Goldman Sachs' bond issuance plans. (Bloomberg) On December 5, expectations for an imminent rate cut by the Federal Reserve increased, with Goldman Sachs reporting that rates could fall below 3%, driving positive market performance, especially in financial stocks. (Zhitong Finance) On December 4, a shift in global economic outlook, driven by AI technology and billionaire growth, boosted market sentiment, benefiting Goldman Sachs from this trend. (Zhitong Finance) Expectations of a Federal Reserve rate cut are driving market sentiment. Morgan Stanley up 0.82%. Based on recent key news: On December 3, Morgan Stanley is considering significant risk transfer measures to divest some of its data center risk exposure. This move aims to hedge risks and free up balance sheet capacity, which may affect its stock price volatility. Source: CaiLianShe On December 4, Morgan Stanley strategists predicted that by 2028, large cloud computing companies would invest about $3 trillion in data center infrastructure, with half needing to be financed through the debt market. This prediction heightened market concerns about its risk exposure. Source: Jinwu Finance On December 4, Morgan Stanley analysts noted that the cost of credit default protection for Oracle has risen, reflecting market concerns about data center financing. This news may impact investor confidence. Source: Bloomberg. Global capital interest in asset allocation in China is rebounding Stocks Ranked Among the Top by Market Capitalization in the Industry Charles Schwab rose 0.08%. Based on recent key news: On December 4th, Charles Schwab's CEO stated that the company's average daily trading volume in the fourth quarter is higher than at any other time this year, indicating increased market activity. This news drove the stock price up. On December 4th, Charles Schwab announced that it will launch Bitcoin and Ethereum trading services in the first half of 2026, attracting investor attention to the digital asset market, which positively impacted the stock price. On December 4th, Charles Schwab's CEO revealed that the company is seeking merger and acquisition opportunities, particularly in the cryptocurrency sector. This strategy could enhance the company's competitiveness and boost the stock price. The digital asset market is gradually gaining attention, and risks should be monitored