A Powerful Mid-Cap ETF

In what has been a banner year for mid-cap stocks and exchange traded funds, there is no dearth of ETF winners from this group. That includes the $12.8 billion iShares Russell Mid-cap ETF (NYSEArca: IWR), which is up 3.7% year-to-date, topping the S&P 500 by nearly 130 basis points in the...