A portfolio of mutual funds, index funds and ETF-traded products that track a particular stock or a particular sector can be useful for a diversified portfolio.
The most common ones are the iShares Russell 2000 Index Fund (IISS), which tracks the S&P 500 index (NYSEARCA:SPY) and the Russell 2000 MidCap 500 Index Fund, which tracks MidCap-S& ;P 500.
However, if you’re looking for more in-depth coverage on individual securities, we have some good information for you on the Investopoeia.com platform.