Robert Defares was bornon 20 February 1845 in Amsterdam, Netherlands, Netherlands. Robert Defares is #1481 in List Billionaires People In The World. Robert Defares presides over Amsterdam-based electronic trading firm IMC B.V., which he cofounded. Defares, who is also Co-CEO of IMC, owns a majority stake in the firm, which has about 500 employees and revenues of $640 million. Defares studied economics at the Free University in Amsterdam.