Patent US 8,090,646

An automated method is provided for administering a single investment company that issues one or more classes of shares that are bought from and redeemed with the single investment company at a net asset value and issues one or more classes of shares that are listed for trading on a securities exchange and that are bought and sold at negotiated market prices. One or more computers maintain account data of the outstanding shares. An owner of any share of any share class has an undivided interest in the single investment company.