1. In an investment company that invests at least a portion of its assets in fixed income securities and declares dividends from income earned on the assets and that has issued (i) one or more classes of shares that are bought from and redeemed with the investment company at the net asset value, and (ii) one or more classes of shares that are listed for trading on a securities exchange and that are bought and sold in the secondary market at negotiated market prices, and that includes one or more computers and one or more databases that maintain information regarding portfolio holdings of the investment company and information regarding outstanding shares issued by the investment company, wherein the outstanding shares are shares in the portfolio holdings of the investment company, the outstanding shares including the one or more classes of shares that are bought from and redeemed with the investment company at the net asset value and the 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, a computer-implemented method comprising: (a) the one or more computers periodically recording declared dividends for the outstanding shares issued by the investment company in the one or more databases, the one or more computers recording declared dividends in the one or more databases at a regularly scheduled first time interval for the outstanding shares issued by the investment company that are bought from and redeemed with the investment company at the net asset value and recording declared dividends in the one or more databases at a regularly scheduled second time interval that is different from the first time interval for the outstanding shares issued by the investment company that are listed for trading on a securities exchange and that are bought and sold in the secondary market at negotiated market prices; (b) the one or more computers calculating the amount of dividends to declare from the information maintained in the one or more databases; and (c) the one or more computers of the investment company paying the declared dividends of the outstanding shares issued by the investment company that are listed for trading on a securities exchange and that are bought and sold in the secondary market at negotiated market prices, and the outstanding shares issued by the investment company that are bought from and redeemed with the investment company at the net asset value.