Apple stock has biggest price drop in 4 years. Why?

There is no answer - it's a hodgepodge of rumors. Traders aren't sure. Perfect storm. Piper Jaffrey analyst keeps his $900 a share price target based on fundamentals

http://www.latimes.com/business/technology/la-fi-tn-apple-stock-biggest-drop-in-four-years-20121205,0,2263305.story