What gets me is that there was all that doom-and-gloom about Nintendo based on that stock drop... but here's a fun fact: at its lowest point just after the revision, it only dropped to about 14.533 (using Google's financial tracker), whereas at the end of October it was 14.01, and it got below 13.5 in September. Indeed, the last time it was as high as it was just before the drop was back in the first half of 2012.
I was actually going to tell people, just after it dropped, to give it a couple of days, and watch how the market reacts, precisely because I expected something like this to happen. Those who divest do so because they see "Nintendo not doing great"... yet investment isn't about current circumstances but future circumstances; no sane investor would decide that Nintendo's about to die based on this one adjustment. And so, the price rose again. Indeed, I wouldn't be surprised if it continues to rise over the next few days.