亚马逊终结9日连跌，期间市值蒸发超4500亿美元

Group 1 - Amazon's stock price rose over 1% on Tuesday, ending a nine-day decline during which its market value evaporated by approximately $450 billion, marking the worst consecutive drop since 2006 with an 18% decrease in market value [2] - The decline in Amazon's stock was directly related to its fourth-quarter earnings report, which indicated a projected capital expenditure of $200 billion for the year, a nearly 60% increase from the previous year and over $50 billion higher than Wall Street expectations [2] - Concerns among investors are growing regarding the substantial AI investments by tech companies, which may compress or deplete free cash flow [2] Group 2 - Alphabet and Microsoft both saw their stock prices drop over 1% on Tuesday, with both companies experiencing five consecutive days of declines, while Meta's stock fell by less than 1% [4] - Amazon's CEO Andy Jassy defended the company's significant investments, expressing confidence that these expenditures will yield substantial capital returns [4] - Analysts from Wedbush noted that Amazon is currently in a "self-proof stage," needing to demonstrate to investors that its capital expenditures will generate returns, with spending growth likely to suppress stock prices until more tangible returns are observed [4]