Designed to provide broad exposure to the Style Box - Large Cap Growth category of the market, the Invesco Bloomberg Pricing Power ETF (POWA) is a smart beta exchange traded fund launched on 12/15/2006.What Are Smart Beta ETFs?The ETF industry has traditionally been dominated by products based on market capitalization weighted indexes that are designed to represent the market or a particular segment of the market.A good option for investors who believe in market efficiency, market cap weighted indexes offer ...