Is Invesco S&P MidCap 400 Pure Growth ETF (RFG) a Strong ETF Right Now?

The Invesco S&P MidCap 400 Pure Growth ETF (RFG) was launched on 03/01/2006, and is a smart beta exchange traded fund designed to offer broad exposure to the Style Box - Mid Cap Growth category of the market.What Are Smart Beta ETFs?Market cap weighted indexes were created to reflect the market, or a specific segment of the market, and the ETF industry has traditionally been dominated by products based on this strategy.Market cap weighted indexes work great for investors who believe in market efficiency. Th ...