Speaking of warren Buffett ask yourself this question going by his theories would he own Amrn? Penny stocks by definition is any stock that trades for under $5 for a period of time. Can you name the last time Amrn was above this price? Amrn is trying to turn itself into a reputable company after some serious blunders by previous management and some hurtful setbacks caused by the FDA. The bottom line is Amrn remains a highly speculative play until and if reduce it works out. Anyone would be foolish to make Amrn 100% of their portfolio. In fact that holds true for investing everything you have in the biotech field.