Studies* have shown that the asset-allocation decision is more important to investment success than decisions about which individual stocks or bonds to buy.
* Gary P. Brinson, Randolph L. Hood, Gilbert L. Beebower, "Determinants of Portfolio Performance", Financial Analysts Journal, January/February 1995
The OptiFolio program focuses on optimizing the clients TOTAL assets (TA) which is the sum of assets under the program management (AUM) and all other investment assets outside the program management (OA) (i.e. managed by the client or a third party). Put differently:
TA = AUM + OA