Analysis-For stock market, AI turns from lifting all boats to sinking ships

Group 1 - The artificial intelligence landscape is seen as both a promising investment opportunity and a source of risk, with enthusiasm driving stock gains in technology and related sectors [1][2] - Concerns over AI's disruptive potential are causing investors to reassess valuations in industries such as software, legal services, and wealth management, impacting major companies like Amazon and Microsoft [2][3] - The S&P 500 software and services index has declined by 15% since the end of January, indicating a shift in market dynamics as investors react to perceived winners and losers in the AI sector [3] Group 2 - U.S. brokerages experienced significant stock declines after the introduction of AI-enabled features by wealth management startup Altruist, with major firms like LPL Financial and Charles Schwab dropping at least 7% [4] - The volatility in the market is expected to be driven by headline stories that are focused on individual companies, leading to fluctuations in stock prices [5] - Concerns regarding high capital spending in the software sector have led to declines in shares of major companies, with Microsoft down 16% and Amazon down over 11% this year [6]