Mr. Matsumoto began his career at Salomon Brothers Asia and joined Goldman Sachs Japan in 1990. He was the head of their fixed income and currency business and became general partner in 1994 at the age of 30, the youngest ever at that time.

In 1999, he founded Monex, which was jointly capitalized with Sony. Monex integrated its business with Nikko Beans and established Monex Beans Holdings, Inc. (now Monex Group, Inc.) in 2004, where he is presently Chairman & CEO. Now Monex Group, Inc. is a global online financial institution with operations in three major financial centers: Monex, Inc. (Japan), TradeStation Group, Inc. (US), and Monex Boom Securities Limited (Hong Kong). The group has over 900 employees worldwide with over half of its staff located in the US.

Mr. Matsumoto was an outside director of the Tokyo Stock Exchange from 2008 to 2013, and presently is an outside director of Kakaku.com, as well as a councilor of International House of Japan.

He has a BA in law from the University of Tokyo.