U.S. stock market intraday update: Volume increased, down 12.54%, market volatility intensifies and requires further observation

U.S. Stock Market Midday Update Stem, down 12.54%, with increased trading volume and no significant news recently. Trading is active, with clear capital flow. Considering sector and industry trends, the stock shows significant volatility, and specific reasons need further observation. Stocks with High Trading Volume in the Industry Vertiv, down 10.05%, with increased trading volume. Based on recent key news: On December 11, the market is highly focused on the U.S. Supreme Court's upcoming ruling on the legality of the Trump administration's tariffs, which may trigger significant volatility in the bond market, affecting investor confidence in interest rate prospects, leading to a decline in Vertiv's stock price. On December 10, Vertiv reported strong quarterly performance, healthy demand, and optimistic profit expectations, but the market expressed concerns about its valuation upside, impacting stock performance. On December 12, analyst ratings showed Vertiv is not on the recommended buy list. Although maintaining a moderate buy rating, the market holds a cautious attitude towards its future performance. The technology sector shows strong demand, with attention to interest rate changes. Eaton, down 5.36%. Based on recent key news: On December 10, Eaton announced it will invest over $50 million in Virginia to build a new manufacturing campus to support power distribution technology production for data centers. This move will expand its business scale in Richmond and create 200 jobs. Following this news, the stock price rose by 1.4%. Source: MT Newswires On December 11, Eaton has invested over $1.2 billion in North American manufacturing since 2023, demonstrating support for key industries. The new campus will consolidate three local manufacturing facilities and receive state and local economic development incentives. Source: RTTNews On December 11, Eaton's expansion plan includes starting production in 2027 and beginning recruitment in 2026. This news further solidifies its leadership position in the power management sector. Source: Reuters. Increased investment in the power industry, with attention to policy changes. Hubbell Incorporated-B, down 3.20%, with a trading volume of $411 million and increased trading volume, with no significant news recently. Trading is active, with clear capital flow. Considering sector and industry trends, the stock shows significant volatility, and specific reasons need further observation. Stocks with High Market Capitalization in the Industry Emerson Electric, down 2.14%. Based on recent key news: On December 10, analyst ratings showed Emerson Electric was not included in the top recommended stock list. Although Emerson Electric received a "moderate buy" rating, the market's lack of confidence in its future performance led to a 2.14% decline in stock price. Data source: MarketBeat. On December 9, weak macroeconomic data affected the overall performance of the industrial sector. The latest manufacturing data released in the U.S. fell short of expectations, dragging down the performance of industrial stocks, including Emerson Electric, further exacerbating downward pressure on stock prices Data source: Zhitong Finance. On December 8th, signs of capital outflow were evident. Investors' concerns about increasing market uncertainty led to capital outflows from the industrial sector, with Emerson Electric's trading volume expanding and stock price under pressure. Data source: Wall Street Insight. The industrial sector has shown weak performance recently, with significant capital outflows