Most ETF assets are allocated to funds that follow well-known benchmarks such as the S&P 500 or the NASDAQ, but an increasing number use complex strategies or follow relatively obscure indexes. Several of the funds in the Quantitative Methodology ETFdb Category use quantitative indexing strategies that are relatively unknown to most investors. Since the strategies [...] Related Stories: ETFs Under The Microscope: PWC This Week In ETFs: December 18th Edition