First Trust and WisdomTree (NasdaqGM: WETF) ranked first and second, respectively, last as the fastest-growing ETF providers, according to Dorsey Wright data.

Dorsey Wright is the index provider for popular PowerShares ETFs such as the Powershares DWA Momentum Portfolio (NYSEArca: PDP) and the PowerShares DWA SmallCap Momentum Portfolio (NYSEArca: DWAS).

U.S. ETP Growth



Chart Courtesy: Dorsey Wright & Associates