Have not been around all that long but this is a baffling stock. I have a feeling that there is some kind of perception of it not quite having enough marketing or confidence-inspiring mojo to overcome being kinda dissed by the FDA at one point.
If it kicks into gear it should go far- despite the fact that Ebola is more or less 'passe' in the minds of Americans- chronic fatigue is real. Just seems there's too many positives to account for its lackluster performance.