U.S. stock night market volatility: Polestar surged 16.05% in after-hours trading, with active capital inflow attracting market attention

U.S. Stock Night Market Movements Polestar Automotive UK PLC - CW 27 rose 16.05% in the night market, with no significant news recently. Trading is active, and capital flows are evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. Stocks Ranked High in Industry Transaction Volume Tesla rose 0.04% in the night market. Based on recent key news: On December 9, Morgan Stanley downgraded Tesla's rating to "Hold," reflecting an overvaluation. Tesla's stock price has fully reflected the positive factors of its non-automotive business, leading to stock price fluctuations. Source: Zhitong Finance On December 12, Tesla's U.S. sales in November fell 22.74% year-on-year, while market share rose to 56.7%. The decline in sales was affected by the Trump administration's cancellation of tax credits. Source: Reuters On December 9, ARK Invest reduced its holdings in Tesla, reflecting market concerns about its valuation. This move affected stock price performance. Source: Bloomberg The electric vehicle industry faces risks of demand slowdown. XPeng rose 0.52% in the night market. Based on recent key news: On December 10, Volkswagen Group announced that the first model equipped with the CEA architecture in collaboration with XPeng will be launched on December 31. This news boosted market confidence in XPeng's technological innovation capabilities, driving the stock price up. Source: Zhitong Finance On December 9, XPeng exported a record 5,057 vehicles, a year-on-year increase of 40.39%. This export data indicates significant progress in the company's expansion in international markets, further boosting investor confidence. Source: Zhitong Finance On December 11, XPeng CEO He Xiaopeng shared the latest FSD V14.2 version test drive experience on Weibo, showcasing the company's advancements in autonomous driving technology, attracting market attention. Source: Wall Street Insight The competition in the new energy vehicle market intensifies, with policy support. Rivian rose 0.73% in the night market. Based on recent news: On December 12, Rivian launched its self-developed chip and AI assistant during its Autonomous Driving and AI Day event, aiming to enhance autonomous driving capabilities. This move attracted market attention, but the stock price hit an intraday low after the event, falling by 10%. Source: Zhitong Finance On December 11, Rivian announced that it will launch L4-level autonomous driving capabilities in 2026 and plans to introduce the R2 mid-size SUV next year. Despite significant technological progress, Morgan Stanley remains cautious about the market adoption speed. Source: Zhitong Finance On December 12, Rivian's stock price was affected by the slowdown in U.S. electric vehicle market sales. Although it has risen about 25% this year, it is still down over 80% compared to its IPO. Source: Zhitong Finance The growth rate of the electric vehicle market is slowing, and competition is intensifying