VWO, the largest emerging market-related ETF by assets, brought in more money in the five days through Thursday than any of the more than 2,400 other funds in U.S. exchanges, Bloomberg reports. Among most in-demand ETFs of the past week, the Vanguard FTSE Emerging Markets ETF (NYSEArca: VWO) attracted $1.3 billion in net inflows and the iShares Core MSCI Emerging Markets ETF (NYSEArca: IEMG) saw $1.0 billion in new creations, according to ETFdb data. On the other hand, ETFs that track the Nasdaq 100 Index shares, gold, silver, real estate, global bonds, and inflation-linked securities all suffered heavy outflows.