Macroeconomic Factor Risk Budgets for Strategic Stock and Bond Allocation

Summary

This report summary presents a strategic allocation framework that shifts the budgeting unit from asset classes to macroeconomic drivers, aiming to reduce exposure to changing correlations among assets. Principal component analysis is used to derive five domestic equity and bond factors associated with interest rates, growth, credit, term spreads, and size style. The report compares a fixed risk-budget model with two adaptive variants: one weights factors by expected returns, while the other uses expected return per unit of risk.

Historical backtests from 2013 onward are reported, including annualized return, volatility, Sharpe ratio, and maximum drawdown for each approach. The fixed budget is described as having steadier allocations; adaptive versions rotate allocations more actively, and their results depend substantially on the lookback returns. As of the report’s stated date, allocations were concentrated in bonds. These are historical findings rather than guarantees: factor relationships can change, and the summary flags instability in historical patterns and broad synchronized market declines as risks.

Key ideas

• The framework allocates risk across macroeconomic factors rather than directly across asset classes.
• Principal component analysis produces five factors spanning rates, growth, credit, term spreads, and size style.
• The fixed risk-budget model seeks stable allocation weights, while adaptive models use expected returns to adjust factor budgets.
• The reported backtests show different return and risk profiles, and adaptive results are sensitive to the return lookback period.
• The report warns that historical factor relationships may weaken and that markets may fall together.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.