The S&P SmallCap 600 Index ($SML) has begun hitting new highs over the past few days, while another popular small-cap index, the Russell 2000 ($RUT) has not. Why the disconnect?
From StreetAuthority.com on the Russell 2000:
The Russell 2000 Index contains the smallest 2000 stocks (based on market cap) held by the Russell 3000 (The Russell 3000 Index is comprised of the 3000 largest and most liquid stocks based and traded in the U.S.). The Russell 2000 Index is more evenly weighted than most, as the top 10 holdings represent less than 2% of the index’s overall value. The average firm carries a market cap of just under $1 billion, and most stocks within the index range in size from roughly $100 million to $2 billion.
From the same site on the S&P 600:
Unlike the larger Russell 2000, which also tracks small-cap stocks, the S&P 600 has more stringent requirements for inclusion. Standard & Poor’s adds new stocks to the index based not only on size, but also on financial viability, liquidity, adequate float size, and other trading requirements. This ensures that the index is comprised of higher-quality firms than its larger counterpart
Later, on the ‘positives’ of the S&P 600:
Though not as widely followed as the Russell 2000, the S&P SmallCap 600 Index arguably contains a mixture of more stable and profitable firms. As a result, the S&P 600 has outperformed the Russell 2000 by an average of 3% per year throughout the past decade.
While BMB doesn’t necessarily believe that the purpose or intent of a stock index should be to “outperform” another, the fact that the two indices both track small-cap performance but do not track one another does provide the investor with more options. Since ETFs have been constructed to track both indices, one can choose to invest in the better performing index at any point in time.
If you’re interested in ETFs that track the S&P 600 Small Cap Index, take a look at IJR, or its Growth and Value brothers, IJT and IJS. The Russell 2000 is represented by IWM, and it too has Growth and Value offshoots in IWO and IWN.