The diversity of status-set and role-set relationships of the stockbroker generates various fiduciary and other role-relationship problems. A socio-legal analysis is presented of three mechanisms for resolving the status-set and role-set conflicts of the stockbroker: segregation of statuses, the proliferation of regulatory and self-regulatory structures, and the professionalization of the stockbroker. The analysis suggests some implications for role theory, for the study of interorganizational relations, and for problems of social control through law.