(Bloomberg) -- Emerging markets drew the largest investment flows among U.S. exchange-traded funds last week on bets developing-nation stocks will rebound after they fell to the cheapest relative to developed-nation peers since 2006.

Investors added a net $1.6 billion into ETFs focused on emerging-market equities and bonds in the five days through March 28, helping trim the outflow this year to $12 billion. Flows into the iShares MSCI Emerging Markets ETF, the second- largest of its kind, totaled $1.4 billion, the most among the almost 2,000 U.S.-based funds tracked by Bloomberg.

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