ETFs in Focus as Turkey Crisis Worsens: Invesco CurrencyShares Japanese Yen Trust (FXY) Yen is considered a safe-haven currency in times of uncertainty. Buy These 6 Low Price-to-Book Stocks for Handsome Returns Investors could tap this via the Invesco CurrencyShares Japanese Yen Trust (NYSEARCA: FXY ), which appears a great way to play a future rise in the yen relative to the U.S. dollar. Turkish economy is suffering a myriad woes, including double-digit inflation, inadequate currency reserves and one of the largest current-account deficits in emerging markets.