Inside the Data: When Bond Returns Hide the Risk
One fixed-income manager delivered a 5.70% annual return. That is the number a family council or investment committee might use to judge the mandate, yet the return decomposition tells a more complicated story. Of that performance, 0.86 percentage points came from tightening credit spreads, while adverse interest-rate movements detracted 0.18 percentage points. The portfolio also held an average credit rating of BBB+, with approximately 29% in BBB/Baa securities. At the same time, volatility stood at 2.74 against 2.18 for the benchmark, while the Sharpe ratio — a measure of return relative to volatility — was 0.97 against the benchmark's 1.38. A 5.70% return answers one question: what did the portfolio earn? It doesn't explain how it was generated or what risks were involved to achieve it.