十年前，标普500指数前十大公司仅占指数的18%。今天，这个比例已飙升至接近40%。投资标普500指数最初的目的是追求市场平均回报，同时将风险分散到500家公司。然而，如今前十大公司控制着指数如此大比例，您的投资越来越成为对少数公司巨头的押注。
就像富人越富……
就像富人越富……
已翻译
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