18 Optimizing Optimization
1.6 Fund of funds
An organization might want to control the risk of all their funds against one
benchmark, but give fund managers different mandates with different bench-
marks and risk restrictions. If the managers each individually optimize their
0
2
4
6
8
10
12
No
constraint
11.% Pf Vol10.5% Pf Vol10% Pf Vol9.5% Pf Vol
9% Pf Vol
Portfolio volatility
Tracking error
Figure 1.11 Risk with portfolio volatility constrained.
3.5
2.5
3
1.5
0.5
0
No
constraint
Tracking error (%)
3% TE
2.5% TE
2% TE
1.5% TE
1% TE
1
2
Market portfolio tracking error
Model portfolio tracking error
Figure 1.12 Risk with tracking error constrained against a model portfolio.