Trade mostly bio, especially catalysts in fundamentally sound cos. DD the pants off a co. before I decide to invest (or not). Love small-micro cap bios, especially those developing new standards of care (or CURES!) for oncological nightmares.
Give a man a fish and you feed him for a day. Teach a man to fish and you give him the skills and potential to start a charter fishing company that allows him the ability to charge you for fishing with him.
I invest in companies with strong fundamentals which are also significantly undervalued, presenting a good margin of safety. I write extensively about my ideas and investment strategies on my blog at Soberstocks.com