The S&P 500 Is More Concentrated Than Ever, and That’s Historically Bad News for Wall Street

For well over a century, Wall Street has provided a pathway for everyday investors to build their wealth. The annualized returns for the iconic Dow Jones Industrial Average (DJINDICES: ^DJI), benchmark S&P 500 (SNPINDEX: ^GSPC), and growth-fueled Nasdaq Composite (NASDAQINDEX

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