The Greenback trading against the Yen saw a 3% spike today on the back of the central banks decision to sell Yen and buy government bonds to weaken the yen.
Japans central bank has been toiling with the currency and has made its 3rd intervention since September 2010.
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The dollar rose as high as 80.23 yen, its highest point in nearly a month, before edging back to 79.09 yen. The dollar was worth 76.95 yen late Wednesday.