# 指數化投資的真相（5）指數化是否讓投資者更難挑中被低估的股票？

## 透過價格離散（Price dispersion）的程度來衡量投資機會多寡

Dispersion is defined as the percentage of stocks in the Russell 3000 Index that have either outperformed or underperformed the index by at least ten percentage points.

## 透過指數型基金的市場占比來衡量指數化的普及程度

Index fund asset percentage is the percentage of assets in U.S.-domiciled equity funds invested in index funds. Sector funds are included.

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