I work in biotech so I invest in biotech. I try to play runups into results. I hold often through results because of major DD. I like small mcap companies and binary events. I mostly try to get in early and hold LT.
I'm going to warn you right from the get go - I have NO earthly idea what I'm doing. None. No, really. Quit my day job and been F/T trading since June 2013. Have more money than I started with. Substantially more. Better lucky than good? Guess so.
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