PowerShares Global Clean Energy Portfolio (NYSEArca: PBD)
Year-to-date return: 58.9%
Total net assets: $83.6 million
Comment: Imagine the potency of an ETF that can offer exposure to alternative energy stocks as well as Chinese and Japanese equities. The clean energy boom is a global phenomenon that has caught the markets by storm. Additionally, the iShares Global Clean Energy ETF (Nasdaq GIDS: ICLN), which has $46.8 million in assets, is up 58.6% year-to-date. [Clean Energy ETF May Have the Perfect Combination]