Three exchange-traded funds Morningstar would like to see come to life: long-short ETFs, momentum ETFs, and volatility ETFs.
A sustainable transportation ETF will begin trading soon. The PowerShares creation will focus on alternative vehicles; rail and subway systems; sea, land, air, and intermodal; and transport innovation.
Many ETFs are "riddled" with structural defects, one critic says.
China ETFs are in a deep slump that may continue, reports the Street.com.