Probably would take a shock besides expected Q1 earnings to take into 2's on any kind of sustained basis. Sub 3's happened over a period of about 3 months in Summer '13 when company was on ropes. Granted co. did issue $3M in warrants to purchase at post-split price of $2.25 at that time, but there has been insider buying at twice that price since. View possibility of downward shocks balanced with potential for positive impacts -- even for the base business alone. Positive news indicating an acceleration of isotope business (or other expedited means to release its value) would be gravy.
Honestly not sure where to place absolute value of company. However, constantly reminding where company has been, what management has said and done, and comparing to where stock price has been in light of changed circumstances enables a better assessment of when the company would be very undervalued. IMO, a 15 to 20 percent fall from here would definitely put the company in that category absent a severe deterioration in its base business or prospects for commercializing its isotope technology.
Never ceased to be amazed by how a little bit of earnings or other company news manifests in such large variations in a company's stock price. Does the value really change that quickly? Just can't help but think that it doesn't.