iShares Core MSCI Emerging Markets ETF (NYSEArca: IEMG)
AUM as of Nov. 7: $2.81 billion
2013 growth: $2.55 billion
Comment: IEMG is part of the cost-efficient iShares core suite of ETFs. Put simply, investors have embraced the concept. IEMG is proof positive of that as the ETF has amassed over $2.8 billion in AUM in just 13 months on the market.