Before hitting the depths, the basics must be covered. That is for ANYTHING you do in life. Anyway. Now you shouldn't just expose yourself to one asset. Meaning, don't throw your money into one investment. Biotech companies are a perfect example. You will certainly have a high chance with biotech companies, but you must also consider the possibilities of a downfall. And a way to determine this is by gaining knowledge about the industry. What if the higher percentage rate of new drugs were lowered by the Food and Drug Administration? This will certainly post negative on your stock profile, and also that is all you got. Variate your options. Industries such as insurance, commodities, consumer goods and real estate are ideal for your family of investments. Not only within sectors should you variate, but also by class. Endure some currency in both cash and bonds. The amount consumed is certainly up to you. Having a broader selection of investments will help you avoid a loss.