Commodity Currencies a Refuge as Intervention Upends Havens

The currency havens are disappearing as Switzerland and Japan intervene in foreign-exchange markets, while U.S. and European debt loads undermine credit ratings.

The biggest beneficiaries in the $4 trillion-a-day currency market may be Norway’s krone and the Australia and New Zealand dollars, according to Frankfurt Trust, which oversees about $23 billion. All have debt that is less than 48 percent of gross domestic product, compared with about 60 percent in the U.S., 77 percent in the U.K. and 79 percent in Germany, according to data compiled by Bloomberg.