Good Day / Bad Day - EW up, MED down

Three names I've had my eye on for a few months now include EW (Edwards Life Sciences), NRGP (Inergy Holdings) and MED (Medifast Inc). These names have appeared here in the all-time high list numerous times and have provided some nice gains along the way. Today, though, is an inflection point for MED, as it sliced though the 50 dma after battling with the 20 dma for a few days. Will the money flow in to buy the dip? We'll find out soon enough. All we can say at this point is the increasing volume on the sell-offs are not a good signal. This is a reminder that although all-time highs offer the opportunity for profits, having a plan for entry and exiting positions (not to mention position sizing) are crucial elements for success. Here are the charts:

MED - note the volume spikes on the down-days


EW - keeps marching along, bouncing off the 20 dma, then returning to overbought territory


NRGP - similar story to EW, though the rate of incline has been more modest