美股市场集中度风险 - 标普500指数前10大成分股占指数总市值近40% 为历史最高集中度水平[2] - 高集中度可能导致少数公司业绩不佳对整个指数产生严重负面影响[2] - 历史模式显示高集中度可能预示未来十年标普500回报率将低于低集中度市场[3] Invesco标普500收入ETF - 跟踪标普500所有公司但按过去12个月收入而非市值加权 并设置5%权重上限[5] - 前十大持仓权重分别为沃尔玛3.8% 亚马逊3.5% 苹果2.4% 联合健康2.3% 麦克森2.2% CVS健康2.1% 伯克希尔哈撒韦2% 埃克森美孚1.8% Cencora1.7% 摩根大通1.5%[5][6] - 2022年熊市期间下跌18% 表现优于标普500的25%跌幅 今年特朗普宣布关税时下跌15% 优于标普500的19%跌幅[6] - 过去十年回报率245% 低于传统标普500的310%回报率[7] - 管理费率为0.39% 高于美国ETF平均0.34%的水平[8] Invesco标普500等权科技ETF - 包含标普500信息技术板块全部68家公司 每家公司权重相等不受市值影响[9] - 过去十年总回报率达468% 显著超越标普500的310%回报率[11] - 科技板块是过去十年表现最好的市场板块 回报率超过第二名板块三倍以上[10] - 人工智能发展可能成为科技股重要推动力 对冲基金经理预测科技板块占美股总市值比例将从目前不足40%升至2030年的75%[11] - 管理费率为0.4% 每投资1万美元每年需支付40美元费用[12]

Key Takeaways Berkshire ended its 17-year investment in BYD after steadily trimming it since 2022.Berkshire has also reduced holdings in Apple and Bank of America to cut concentration risk.Berkshire increased its stakes in Mitsubishi and Mitsui, citing governance reforms and valuations.Berkshire Hathaway Inc. (BRK.B) has been rebalancing its investment portfolio to have income-generating and geographically diverse holdings. This conglomerate has sold its stake in Chinese electric vehicle maker BYD. This mar ...

live. It's time now for the big picture. Let's welcome in Kevin Gordon, senior investment strategist over at Charles Schwab.Good morning to you, Kevin. Thank you so much for joining us. You make the argument that the stock market is the next big economic driver.Talk us through that. Yeah. So the data that we got uh through the second quarter of the year from the Fed just shows that when you look at household exposure, US household exposure to financial assets and in particular the stock market, um it reache ...