Who is oshaughnessy asset management? O'Shaughnessy Asset Management, registered in 2007, serves 52 state (s) with a licensed staff of 21 advisors. O'Shaughnessy Asset Management manages $4.8 billion and provides investment advisory services for 1,843 clients (1:88 advisor/client ratio).Who can apply for the oshaughnessy funds? The O'Shaughnessy Funds are offered only to United States residents, and information on this site is intended only for such persons.Why does oshaughnessy recommend certain securities over others? O'Shaughnessy Asset Management recommends securities that they may have recently taken public or otherwise have controlling interest over. This relationship could introduce bias where a firm and its advisors may push those products over others that may have a more favorable performance with which they are not affiliated.