This ETF is a component of the suite of "dynamic" ETF products from PowerShares, seeking to replicate a benchmark that is constructed based on a proprietary screening methodology. While PTH is an index-based fund, the underlying index seeks to generate alpha by using quant-based filters to select individual stocks. For those who believe the methodology employed is capable of generating alpha over the long run, PTH might be an attractive way to access health care stocks. For those who believe in efficient markets and are looking to keep expenses down, there are probably better options out there; PTH is considerably more expensive than other options such as XLV and FHC. As a sector-specific fund, PTH is probably too targeted for inclusion in a long-term portfolio; this ETF will be more useful for establishing a short-term tactical tilt or as part of a sector rotation strategy.