The value of the Japanese yen fell to 81.22 against the dollar today after surging to a post World War II high last week.
The spike of 76.36 yen to the dollar was attributed to speculators betting the Japanese government would need to repatriate funds to pay for the costs of the March 11 earthquake and tsunami, and a damaged nuclear reactor.
Intervention by the Group of Seven nations helped stabilize foreign exchange markets. Signs that Japan was staving off a nuclear meltdown also helped stabilized the currency.
Before the earthquake the yen traded at 83 to the dollar, according to MarketWatch .