Making its debut on 11/01/2006, smart beta exchange traded fund Invesco S&P 500 Equal Weight Consumer Discretionary ETF (RSPD) provides investors broad exposure to the Consumer Discretionary ETFs category of the market.What Are Smart Beta ETFs?The ETF industry has long been dominated by products based on market cap weighted indexes, a strategy created to reflect the market or a particular market segment.Investors who believe in market efficiency should consider market cap indexes, as they replicate market r ...