The PowerShares Global Progressive Transportation Portfolio (Ticker: PTRP) seeks investment results that correspond generally to the performance, before fees and expenses, of the Wilder Nasdaq OMX Global Energy Efficient Transport Index. The index includes global companies engaged in businesses that the Adviser believes stand to benefit substantially from a societal transition toward using cleaner, less costly and more efficient means of transportation. These companies focus on technologies for utilization of greener, more-efficient sources of energy for transportation. These technologies are designed to improve energy efficiency and reduce the costs for fuel or time in transit and include renewable energy harvesting or production, energy conversion, energy storage, improvements in energy efficiency, power delivery, energy conservation and monitoring of energy information. The index consists of four sectors: 1) Alternative vehicles 2) Rail and subway systems 3) Sea, land, air and intermodal 4) Innovative transportation. The index uses a modified equal dollar weighting. No single security may exceed 5% of the total index weight at the start of the quarterly rebalancing. If a security exceeds 5%, its excess weight will be redistributed within the sector. Underlying index countries include: United States, Canada, Taiwan, Japan and others.