First of all, as a bobd trader I have a pretty good grasp of the market. Bonds are going in the toilet as we speak, meaning a rise in interest rates are only a matter of time. As for the YEN theory it just doesnt hold water with me. Yes the YEN is a factor, but these things fluctuate all the time and this has never resulted in a loss before.
Up untill now NIN has never posted a loss, regardless of why this happened this time it is still troubling, especially to NIN investors. Even the article said that lower than expected sales were partly to blame. The real problem as I see it is that these things usualy get worse before they get better. Yes sales have gone way up since the price cut, but at what cost to NIN? They are clearly getting less per unit, if they are even making a profit at all with the new price.
So to cut this short, if it is a one time deal, then fine no biggie. BUT, if they post 2 consecutive quarterly losses, or if year end numbers come in way lower than what they predict, then look out. Expect a mass exodus from share holders if this happens.