The S&P 500’s Price Is Getting Better Every Week, But This Indicator Keeps Getting Worse. Why 52% Could Be The Market’s Tragic Number.

The S&P 500 Index ($SPX) is routinely described as a broad, diversified proxy for the health of the United States economy. A look under the index’s mathematical hood reveals that this diversification is officially dead. Right now, the top 25 largest stocks in the S&P 500 account for a staggering 52% of the total index weight.

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