The main downward force on Apple's stock price is a lack of clarity around Steve Jobs' successor and questions about how long he will remain at his current post, according to a pair of articles today examining the performance of Apple's stock over the past few months. AAPL is down more than 2% year-to-date, and is down more than 8% since WWDC began. Henry Blodget at Business Insider: Rougemont, a contributor at investor haven Seeking Alpha, agrees, noting "this concern is already discounted in the stock." There may be another, less Steve-related explanation. Last week, there was some extraordinary downward movement on Thursday, on a day without significant bad news. Philip Elmer-Dewitt at Apple 2.0 took a look at weekly options set to expire on Friday as a possible explanation for the sudden plunge. Regardless of the reason behind the drop, some view the price dip as a buying opportunity. Both Horace Dediu at Asymco and Andy Zaky at Bullish Cross believe this drop is a buying opportunity, with Zaky assigning a "buy" recommendation for any price between $300 and $320, with a $500 price target: Apple just closed at $315, down a point and a half on the day. Article Link: Successor to Steve Uncertainty Hurting AAPL Share Price?