I have had a passion for investing since my teens and have been investing personally for over 10 years. I mostly use fundamental analysis and common sense, as well as an understanding of how macro factors will affect my investment thesis. I'm a big believer in being greedy when others are fearful and so far this strategy has led to some of my best investment returns, even if it often requires a lot of patience and a strong conviction. I cover a wide variety of sectors and market caps, but I generally try to invest only in companies whose business model I can understand. Having lived on four different continents, I have a global investment outlook, but invest almost exclusively in US-listed stocks. I generally consider myself a long-term investor, but my average holding period can vary significantly. I re-evaluate my portfolio on a regular basis to make sure my original investment thesis for each position still holds. If it does not apply anymore, I sell the position, no matter if it has been one month or five years.