Methods and apparatus are provided to administer an investment company. The investment company issues one or more classes of shares that are bought from and redeemed with the investment company at a net asset value. The investment company also issues one or more classes of shares that are listed for trading on a securities exchange and that are bought and sold in a secondary market at negotiated market prices. One or more computers maintain information regarding portfolio holdings of the investment company and outstanding shares in the investment company. Dividends are periodically declared at a first time interval for the outstanding shares that are bought from and redeemed with the investment company at a net asset value. The amount of dividends to declare is calculated from the information maintained in the one or more computers. Dividends are periodically declared at a second time interval that is different from the first time interval for the outstanding shares that are exchange-traded. Again, the amount of dividends to declare is calculated from the information maintained in the one or more computers.