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Tag Archives: HHI

Mar 30, 2022

Sizing Sectors

After peaks in S&P 500® concentration, the S&P 500 Equal Weight Index has tended to outperform, suggesting that there is a relationship between changes in concentration and the relative performance of equal weighting. But, does this relationship also occur at the sector level? Using the historical adjusted HHI (Herfindahl-Hirschman Index), we’ve previously established that concentration…

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Mar 14, 2022

Contemplating Concentration

After the exceptional performance of large-cap stocks in recent years, concentration concerns naturally come to mind. There are many ways to measure concentration. A simple method is to add up the weight of the top names, but the drawback with this approach is it doesn’t incorporate all the constituents in an index. The Herfindahl-Hirschman Index…

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Jan 18, 2022

Increasing Diversification of the Australian Equity Market

Equity markets have changed considerably over the past 10 years, reflecting the growth of stocks and sectors in each market. While this growth has led to increased concentration in most of the world’s largest equity markets, Australia is a notable exception, as diversification has improved both in terms of stock concentration and along sector lines….

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