硬AI·2026-01-19 13:16Group 1 - The "Seven Giants" of the US stock market are experiencing a breakdown, with only Alphabet and Nvidia outperforming the S&P 500 index in the past year [2][3] - The market is shifting towards a more selective investment approach, moving away from blind investments in the entire sector to targeted bets on companies that can demonstrate AI's impact on their business [3][6] - The correlation among the "Seven Giants" has collapsed, with their stock price movements no longer synchronized, despite all having trillion-dollar valuations [6][8] Group 2 - The AI trading logic has evolved, with some investors expecting AI benefits to spread to sectors like healthcare, while others continue to invest heavily in chip manufacturers or energy companies [7] - Companies like Amazon, Alphabet, Microsoft, and Meta are investing hundreds of billions in training new AI models and expanding cloud capabilities, while Nvidia remains a leader in the chip market for advanced AI models [8] - Tesla's stock has significantly underperformed due to a slowdown in electric vehicle sales, and its retail trading activity has dropped by 43% compared to two years ago [12][8] Group 3 - Despite the performance divergence, the "Seven Giants" still hold significant market influence, collectively accounting for about 36% of the S&P 500 index's market capitalization [13] - Historical trends show that popular investment groupings can become outdated, with no current alternative to the "Seven Giants" emerging yet [13]