Dorsey Wright momentum strategies are currently used for popular PowerShares ETFs such as the PowerShares DWA SmallCap Momentum Portfolio (NYSEArca: DWAS) and the PowerShares DWA Emerging Markets Momentum Portfolio (NYSEArca: PIE) among others. [Another Momentum ETF Tops $1B in Assets]

PowerShares is closing the the PowerShares KBW International Financial Portfolio (NYSEArca: KBWX), PowerShares MENA Frontier Countries Portfolio (NasdaqGS: PMNA), PowerShares Dynamic MagniQuant Portfolio (NYSEArca: PIQ) and the PowerShares Lux Nanotech Portfolio (NYSEArca: PXN).

PXN was the largest of the funds being closed with $25.4 million in assets under management as of Feb. 18.

ETF Trends editorial team contributed to this post.