Executive directors of Ohio's five state retirement systems sent a...

Executive directors of Ohio's five state retirement systems sent a joint letter Tuesday to William Donaldson, SEC chairman, and John Reed, NYSE interim chairman and chief executive, calling for reforms above and beyond those approved by exchange members last week. The directors urged the exchange to allow electronic trading alongside its specialist system, separate the regulatory and market operations functions, split the chairman and CEO positions and add institutional investors to the board of directors. The systems - Ohio Highway Patrol Retirement System, Ohio Police and Fire Pension Fund, Ohio Public Employees Retirement System, Ohio State Teachers Retirement System and Ohio School Employees Retirement System - have about $115 billion in combined assets.