Investors parried currency risk in their ETF portfolios as the dollar rose in the first quarter. They poured money into the year-old iShares Currency Hedged MSCI Germany (HEWG), which has $1.3 billion in assets. Assets rose 817.6% from Dec. 31 through March 31. Assets of unhedged $6.67 billion iShares MSCI Germany (EWG) grew 46.9% over the same period. Currency hedging makes sense for U.S. investors when the dollar gains vs.