I recently had a conversation with Craig Lazzara, Head of Index Investment Strategy at S&P Dow Jones Indices, about his research on dispersion—a factor he believes is very important in explaining the opportunities for active managers. According to Craig, current dispersion readings are quite low, which implies there are fewer opportunities for active managers than usual. Since there generally is higher dispersion in small caps than in large caps, I thought it would be interesting to see how active managers had performed against broad indexes in the small-cap category over the past decade. Did the greater dispersion and increased opportunities for differentiation lead to better performance for active managers? Turns out it did not for the majority of the periods analyzed.

There Are Many Ways to Invest

There are numerous ways to invest, but the decision usually starts with whether to invest in either active mutual funds or passive exchange-traded funds (ETFs). Some argue that active managers are best suited to outperform, especially in small-capitalization stocks, because they think this area tends to be less efficient. Recently, as a result of the broad market rally, these same proponents of active managers have insisted that today’s environment is ripe for active managers to outperform, so I want to take a hard look at the numbers.

In the table below, I compare how some small-cap indexes have performed against U.S. ETFs and open-end mutual funds in the Morningstar Small-Cap Blend category.

Small-Cap Study (12/31/2003–12/31/2013)

Majority of Active Managers Underperform – Over the most recent 10-year period the Russell 2000 Index and the S&P SmallCap 600 Index outperformed 56.3% and 86.3%, respectively, of managers in the Morningstar Small-Cap Blend category. The Russell 2000 also outperformed more than 50% of the Morningstar category in 5 out of the past 10 calendar years, and the S&P SmallCap 600 outperformed more than 50% of the category in 8 out of the past 10 calendar years. Notice the differentiation between the S&P Small Cap 600 and the Russell 2000. I discussed the benefits of including a profitability and quality screen in the S&P methodology in this research piece, and we can see its track record added considerable value by substantially increasing the percentage of active managers it beat.

WisdomTree SmallCap Earnings Index – WTSEI has outperformed over 91% of the Morningstar category since its inception.1 I find it impressive that the Index was able to outperform over 90% of the category during the 2009 and 2013 calendar years, which were some of the best-performing years for the category. It is even more impressive considering the Index also outperformed close to two-thirds of the category in 2008 and 2011, which were among the worst.

Why Indexes?

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