Marc Tyler Arnold (born November 20, 1992) is an American chess player who received the FIDE title of Grandmaster (GM) in September 2012. Arnold's peak USCF rating was 2640 in July 2012. In August 2012, he received his peak FIDE rating of 2540 and earned the GM title. He won the US Junior (closed) Chess Championship in 2012 and 2007. Arnold became an International Master in 2009. Arnold graduated from Indiana University and is currently a Commodities Trader at a hedge fund in New York City.