Core Viewpoint - The recent decline in U.S. technology stocks has raised concerns among investors about the sustainability of the tech rally, particularly in light of a critical report on AI investments and warnings about potential market bubbles [2][3][4]. Group 1: Market Performance - The Nasdaq Composite Index fell by 0.67%, while the S&P 500 Index decreased by 0.24%. The Dow Jones Industrial Average saw a slight increase of about 16 points, with a gain of less than 0.1% [2]. - The current downturn may mark the weakest week for the Nasdaq since mid-May, following a significant rebound of 30% since April [2][5]. Group 2: Factors Behind the Decline - The decline in tech stocks is attributed to the "Big Seven" tech companies experiencing consecutive drops, amidst ongoing concerns about the AI investment bubble and high valuations [3]. - A key report from MIT indicated that 95% of tech companies have not seen returns on generative AI investments, with only 5% of AI pilot projects creating measurable value [3]. - OpenAI's CEO Sam Altman compared the current AI enthusiasm to the internet bubble of the 1990s, suggesting that some investors may incur significant losses [3]. Group 3: Economic and Policy Context - The U.S. government is shifting its industrial policy focus towards technology stocks, but this has not improved investor confidence in AI and tech stocks [4]. - Analysts have noted that profit-taking and low liquidity have contributed to the recent market volatility, especially as some tech stocks have surged over 80% since early April [4]. Group 4: Future Outlook - There are indications that the tech sector may be facing a reckoning, as the market has seen a leadership shift with growth stocks lagging behind small-cap and value stocks [5]. - Bank of America suggests that the era of large-cap dominance may be nearing its end, as historical trends show that large-cap stocks tend to underperform during economic recoveries [6]. - Despite the challenges, some analysts remain optimistic about the tech sector, citing strong demand for AI solutions and encouraging investors to buy on dips [7]. Group 5: Upcoming Events - Investors are anticipating Nvidia's upcoming Q2 earnings report, which will serve as a critical test for the sustainability of the AI hype [8].