Invesco RAFI US 1000 ETF(AMEX:PRF)

PRF is composed of large-cap stocks selected, weighted and ranked by fundamental value. The index calculates this fundamental value at company level, rather than at stock level, using four metrics: book value, cash flow, sales and dividends. While not a classic value fund, PRF breaks the link between the price of a stock and its weight in the portfolio, aiming to hold stocks in proportion to firm size, without overweighting the priciest stocks. With about 1,000 holdings and an alternative weighting, the fund dips into midcap territory. PRF is a complement to sibling fund PRFZtogether they cover the total market segment of the US equity market. The index is rebalanced and reconstituted on an annual basis.