Apple Inc. (Nasdaq: AAPL) stock is up more than 66% over the past year and more than 15% just in 2015.
Yet the arrival of the next Apple hit - the Apple Watch - has forced analysts to recalibrate their AAPL price targets again.
While it looks like a good time to buy AAPL stock - how can investors know for sure? And that begs another question: How do you know when to sell a high-flyer like Apple?