Ok, now for the week's summary.
The yen has been rather weak all week round, hitting a high of 80.75 to the dollar. This compared to an indirect quote of 80.84 to the dollar considering at that exact same time, S(USD/EUR) = 1.3450 and S(JPY/EUR) = 108.7345. Assuming no transaction costs, that is 0.12% riskless profit per yen invested.
Other than that, well there's nothing much to talk about the yen. it has been a pretty uneventful week in the Japanese markets except for the fact that exporters are gaining ground in the stock market due to the weakness of the yen. I believe the yen is already past the turbulent stage where it floats randomly between the 76 and 78 mark. The price of 80 JPY/USD seems to be the new support level. and I can only predict volatility will only decrease when the green back hits the 100yen region. That is where the yen was till the nuclear disaster occurred.
That wraps it for the week's analysis for the yen against the greenback.