The market's biggest stocks hold the largest share of the S&P 500 in 40 years as mega-cap tech returns swell

Business Insider

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· *Investors' rush to tech giants pushed weighting of the S&P 500's 10 biggest stocks to record highs.*
· *The companies took up roughly 29% of the index as of July 31, according to The Wall Street Journal, the largest share in data going back at least 40 years.*
· *Several of the largest firms rallied through the summer to...

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