美国科技股遭抛售冲击全球股市

Group 1 - The core concern in the market is the high valuation of U.S. technology stocks, leading to significant declines in major U.S. stock indices on October 4 [1][3] - The Dow Jones Industrial Average fell by 251.44 points (0.53%), the S&P 500 dropped by 80.42 points (1.17%), and the Nasdaq Composite decreased by 486.089 points (2.04%) [3] - Notable declines in tech stocks include Palantir, which fell by 7.94%, and Nvidia, which dropped by 3.96% [3] Group 2 - Analysts attribute the decline in investor confidence to concerns over high valuations in the tech sector and warnings from executives at Goldman Sachs and Morgan Stanley [3] - Goldman Sachs CEO David Solomon indicated a potential market drop of 10% to 20% within the next 12 to 24 months, while Morgan Stanley CEO Ted Pick suggested investors prepare for a market downturn as a normal occurrence [3] Group 3 - Michael Burry, a well-known short seller, invested approximately $1.1 billion in put options for Nvidia and Palantir, betting on their stock price declines [4] - Following the Nasdaq's drop, major Asian markets also experienced significant declines, with Japan's Nikkei 225 index falling by 2.5% and South Korea's index dropping by 2.9% [4] Group 4 - European markets also faced declines, with France's CAC40 index down by 0.52% and Germany's DAX index down by 0.76% on October 4 [4] - The overall sentiment in global markets has shifted towards risk aversion, with indications that stock valuations are at an unsustainable high [5]