how to tell if a stock hitting yearly highs is still a buy

With many companies at fresh 52-week highs, investors may question the wisdom of putting more money to work. The fear is that a stock tapping new higher prices could be ready for a fall.

So what do you do when a stock is near its yearly highs? It is a bad time to open a new position or add to an existing one? Or do you sell and take profits?

We've got the answers. Here's exactly how to tell if a stock hitting yearly highs is still a "buy"...