The Japanese currency staged a sharp rise across the board before the Wall Street opens on Friday. Extending previous sessions' uptrend, the yen jumped to multi-day highs of 78.44 against the Canadian dollar, 67.3 against the Australian dollar, 139.09 versus the pound, 85.12 against the franc, 97.12 against the US dollar and 129.39 against the euro by 7:55 am Eastern Time.

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