How to use this tool
Start with your strategic policy weights — the long-run target allocation from your Investment Policy Statement. Then enter a tactical tilt: positive numbers overweight an asset class vs. policy, negative numbers underweight it. Tilts must sum to zero (the total portfolio is still 100%).
The tracking error is the annualised standard deviation of the difference in returns between the tilted portfolio and the policy benchmark. A tilt of +5% equities / −5% bonds produces tracking error approximately equal to σ(equity − bond) × 0.05 = √(σ_eq² + σ_bond² − 2ρ_eq,bond × σ_eq × σ_bond) × 0.05. Higher active deviations and lower cross-asset correlation both produce higher tracking error.
The information ratio tells you how much expected return per unit of tracking error the tilt provides, conditional on the tilt view being correct. Most institutional TAA programmes target an information ratio above 0.5 for approved tactical tilts. An IR below 0.3 suggests the expected return improvement is not large enough relative to the active risk taken. See Tactical Asset Allocation Signals for how to build the return view that drives this calculation.