Here is Nintendo's stock since the Wii U launched november 18th 2012 (11 of the 16 days down)

Here is Nintendo's Stock chart since the Wii U was announced on April 25th 2011

Here is Nintendo's chart from where the Wii was originally shown on May 17th 2005 to 1 year after the Wii was released November 19th 2007

what exactly happened that caused that to happen?

Makes sense. In both scenarios, the 3DS was underperforming.

How bad is this? doesn't stock always raise and fall?

Isn't this normal with every new console release? Investors always have doubts about a new console and besides if the stock is going down because of sales then is pretty stupid imo. The Wii U have sold pretty well (Europe aside), and it's better than the PS3 and 360 launch.

A number of factors. Strong Yen, Nintendo's first anual loss ever. The US "fiscal cliff" and the Japanese election are not helping matters. Markets were skeptical on the WiiU reveal. Now is an Amazing time to buy Nintendo stock, if you're into making lots of money.

Investors jumped on the Nintendo bandwagon like crazy.

Then when the mobile game craze started up, they dropped Nintendo for mobile firms.

Nintendo's stock dropped even more after E3 when investors were expecting Nintendo to announce they were going to support mobile devices.

Watching stock on many tech sector companies is nothing more than watching the hype.

Besides, look who they go to for video game investment advice....Micheal Pachter.

Nintendo is doomed.

doomed post moderated by doomed moderator of doom, axumdoom.

Constant inconsisenty from Nintendo these past 3 years. lower hardware shipment numbers (from their own projection), lower software numbers, lower profits (now losses), repeat.

In terms of bad economic times, Nintendo achieved record earnings(profits), record sales and shipments in 2008 and 2009 which were the depths of the housing collapse...so you really cant blame that.  

Patcher was signling doom and gloom for nintendo in 2005, 2006 2007 and beyond, that didnt stop Nitnendo from going up 7 fold.  Maybe its a nintendo execution problem this time?