The Forbes 400 list tends to attract the attention of many each year when it comes out. Perhaps we just like to see who some of the most wealthy people on the planet are, or maybe we are somewhat jealous of their success. Whatever the case may be, there is no question that this list garners a lot of attention when it comes out. However, one person on the list who some may have missed is Ken Griffin. Ken Griffin is not a household name in the way that Bill Gates or Mark Zuckerburg are, but that does not make him any less important. In fact, he is one of the more active people on the list in terms of jumping up that list year after year. This has to do with the fact that he is amassing some wealth for himself through his investment firm known as Citadel. Citadel is a firm that was founded by Griffin with the intention of working in the markets in the ways that only he knows how to do well. This mean that he put his investment ideas to the test with the firm and that he worked hard to build it into something that could beat the markets on a regular basis. In 2015, Griffin was highly successful in his quest to beat the markets. A 13% return in the first eight months of 2015 looks incredibly good to most. It was something that Citadel accomplished by being patient and not panicking when the market was in turmoil during the month of August. A lot of other professionals and firms lost money during that period of time, but Citadel just continued to march on. The firm is finally getting its accolades in the market, and they are well deserved. There are few who could say that they pulled off something like this during one of the worst markets in recent memory, but Citadel did. Ken Griffin is definitely someone to watch by simple virtue of the fact that he is proving that he can make it even when the markets get tough and others run for the door.