Japan Faces $510 Billion Loss From Intervening to Curb Yen, JPMorgan Says

Valuation losses on Japan’s foreign-exchange reserves minus yen liabilities totaled 35.3 trillion yen at the end of 2010, according to Finance Ministry data. The losses may swell further as the yen is projected to climb to 72 versus the dollar by September 2012, said Tohru Sasaki, head of Japan rates and foreign-exchange research at JPMorgan Chase in Tokyo.

“It’s difficult to change the trend of the currency market” with intervention, said Sasaki, who used to work in the foreign-exchange division of the Bank of Japan, at a forum in Tokyo yesterday. “Even if the action can stem the currency’s gains temporarily, the yen will eventually appreciate.”

Japan on Oct. 31 intervened in foreign-exchange markets to weaken the yen for the third time this year after the currency gained to a postwar record. Finance Minister Jun Azumi said he will continue to intervene until he’s “satisfied.”

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