OKASAN SECURITIES GROUP INC revenue for the last year amounted to 84.51 B JPY, the most of which — 84.51 B JPY — came from its highest performing source at the moment, Investment and Financial Services. The greatest contribution to the revenue figure was made by Japan — last year it brought OKASAN SECURITIES GROUP INC 84.51 B JPY, and the year before that — 66.55 B JPY.