Nintendo's stock is down 20% since Super Mario Run came out ~updated~

[squibbfire]

Does anyone have any theories on why this happened?

I actually thought this may have been an ok idea.

Nintendo's stock is down 20% since Super Mario Run came out

http://money.cnn.com/2016/12/19/technology/super-mario-run-nintendo-share-price/index.html

 

~update: Seems the stock has continued to drop...let me know if 20 is incorrect...