Patent ID: 7729969

Claim:
A method, comprising: storing an overlay model for use in managing an investment account comprising a plurality of investment styles, including a first investment style and a second investment style, wherein the overlay model includes (i) an across-style model allocation specifying cumulative asset allocations among the plurality of investment styles, and (ii) a plurality of style models, wherein each of the plurality of style models specifies allocation weightings for respective individual assets, including respective cash allocation weightings for respective cash, of a respective investment style of the plurality of investment styles, wherein information for each of the plurality of style models included within the overlay model is received from a respective money manager for the respective investment style associated with the respective style model; determining a cash drift for each of the first investment style and the second investment style, wherein the cash drift for each of the first investment style and the second investment style is determined by comparing the respective cash of the first investment style and the second investment style to respective cash allocation weightings specified by the respective style model for each of the first investment style and the second investment style; and responsive to determining the cash drift for the first investment style and the second investment style, directing a transfer of a portion of the cash from the first investment style to the second investment style to rebalance cash in the investment account, wherein the prior steps are performed by one or more computers associated with an overlay manager.