 In 2004, both Mary-Kate and Ashley took control of Dualstar, becoming joint-CEOs and presidents of the company, which at the time had its merchandise being carried in over 3,000 stores in America and 5,300 stores worldwide.Olsen and her sister became co-presidents of Dualstar upon their eighteenth birthday.These ventures, combined with an array of licensing deals for their names and likenesses, made Olsen wealthy at a young age.