MUFG holds assets of around US$2,459 billion as of 2016, making it the world's fifth largest bank by total assets[1] and is one of the main companies of the Mitsubishi Group.[4] It is Japan's largest financial group and the world's second largest bank holding company holding around US$1.8 trillion (JPY 148 trillion) in deposits as of March 2011.[1] The letters MUFG come from Mitsubishi and United Financial of Japan, the name of an acquired company.