U.S. stock night market volatility: Polestar fell 7.16% in after-hours trading, with active trading causing fluctuations, and capital flow becoming a key factor?

U.S. Stock Night Market Movements Polestar Automotive UK PLC - CW 27 fell 7.16% 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 with High Trading Volume in the Industry Tesla fell 1.73% in the night market. Based on recent news, On December 8, Morgan Stanley downgraded Tesla's rating from "Overweight" to "Equal-weight," raising the target price from $410 to $425. Morgan Stanley stated that Tesla's valuation has reached a "full level" and expects a more volatile trading environment in the coming year. This news led to a pre-market drop of 1.2% in Tesla's stock price. On December 9, Andrew Percoco, the new Tesla research head at Morgan Stanley, pointed out in his first research report that the positive factors of Tesla's non-automotive business have already been reflected in the current stock price, setting a target price of $425, indicating a 6.6% downside from last Friday's closing price. This news further exacerbated market concerns about Tesla's valuation, leading to a decline in stock price. On December 9, ARK Invest reduced its holdings in Tesla, selling $923,000 worth of 2,100 shares. This move came as analysts expressed concerns about Tesla's reasonable valuation, further dampening market confidence. The outlook for the electric vehicle industry remains cautious, with valuation pressures evident. XPeng fell 1.12% in the night market. Based on recent key news: On December 10, XPeng reported a case to the public security authorities regarding the generation of fake videos by AI technology, causing adverse social impact, which may affect investor confidence. On December 9, XPeng exported a record 5,057 vehicles in November, a year-on-year increase of 40.39%, showing positive results in expanding overseas markets. On December 8, XPeng's chairman He Xiaopeng emphasized the strategy for the AI era at the Entrepreneur Annual Meeting, which may trigger market attention on the company's future technological developments. Competition in the new energy vehicle market is intensifying, and policy impacts are significant. Nio fell 1.19% in the night market. Based on recent news: On December 9, Morgan Stanley lowered Nio's target price by 20% to 54 yuan, leading to a decline in market confidence and stock price. On December 8, Nio announced that its sub-brand Onvo would invest over 8,000 new battery packs into the national battery swap network by mid-January 2026. Although this plan shows the company's confidence in the future, the market reacted poorly in the short term. On December 8, Nio's Firefly plans to enter the UK and Thailand markets in 2026. Although this expansion plan demonstrates the company's ambition for globalization, the market expresses concerns about its short-term profitability. Competition in the electric vehicle industry is intensifying, and market volatility is evident