Motley Fool – The latest 13F season is here, when many money managers issue required reports on their holdings. It can be worthwhile to pay attention, as you might get an investment idea or two by seeing what some major investors have been buying and selling.
For example, consider Citadel Advisors, founded and led by Kenneth Griffin. It’s one of the biggest hedge fund companies around, with a reportable stock portfolio totaling $76.8 billion in value as of Dec. 31, 2013. According to the folks at Insider Monkey, Griffin and his team use “a combination of advanced computer code, complicated financial algorithms and secrecy. Griffin was using quantitative, technology-based methods before many other firms had cell phones.”