Nvidia(US:NVDA) 美股研究社·2025-11-21 07:36Core Viewpoint - The U.S. stock market experienced its most significant intraday reversal since April, with major indices dropping sharply, leading to a loss of over $2.7 trillion in market value, raising concerns among Wall Street traders about the underlying causes of the decline [5][6]. Market Performance - The S&P 500 index fell by 1.6%, marking a significant drop, while the Nasdaq 100 index saw a decline of 2.4%, reaching a new low since September, with a cumulative drop of 7.9% from its record high on October 29 [5][6]. - The VIX index, which measures expected stock volatility, rose above 26 for the first time since April, indicating increased market uncertainty [5][6]. Key Factors Behind the Decline - Concerns about whether AI projects can generate sufficient revenue or profits to justify substantial technological investments resurfaced [6]. - The strong employment report from September was interpreted as a signal that the Federal Reserve may not lower interest rates again this year [6]. - The drop in Bitcoin to a six-month low was viewed as a risk-off signal contributing to the stock market's decline [6]. - High stock valuations and rising volatility ahead of the expiration of approximately $3.1 trillion in nominal options were also cited as potential factors [6][7]. Analyst Insights - Analysts highlighted various unresolved economic and market challenges, including labor market strength, tariffs, inflation, and the sustainability of AI investments [11]. - Concerns about overvaluation and the trend of debt financing potentially overshadowing shareholder returns were emphasized [12]. - The mechanical outflow of funds from trend-following strategies could continue in the coming days, leading to further selling pressure [12]