Short-dated credit strategy delivers steady returns with lower risk
A bond strategy that focuses on the short end of the yield curve, specifically a mix of 50% short-dated BBB-rated bonds and 50% BB-rated bonds, has shown strong risk-adjusted returns over two decades of backtesting, according to new analysis. The approach leverages the “rolldown effect” (gains from maturing bonds being reinvested at higher yields) while avoiding the volatility of longer-duration or lower-quality credit exposures.
Why This Strategy Works in Practice
The backtested strategy outperformed broader fixed-income benchmarks by combining two distinct segments of the credit market. Short-dated BBB bonds (investment grade) and BB bonds (high yield) serve complementary roles: the former provides stability, while the latter offers higher yields. The crossover between these two ratings, often overlooked by investors, creates inefficiencies that the strategy exploits.
Historical data shows the strategy’s maximum drawdown was 17%, occurring during the 2008 financial crisis, when credit spreads widened sharply. Outside that period, drawdowns were significantly lower than those of traditional fixed-income portfolios, suggesting a smoother ride through market turbulence. The analysis, based on ICE BofA indices and hedged to GBP, spans over 20 years of returns.
One reason for the strategy’s resilience is sector diversification. Short-dated BBB bonds tend to be concentrated in financials, while BB bonds lean toward utilities and telecommunications. By blending the two, the strategy reduces reliance on any single industry, lowering unsystematic risk. This diversification extends to issuer exposure, further stabilizing performance.
Addressing the Skeptics
However, research indicates these bonds outperform both investment-grade and high-yield peers over the long term, offsetting any short-term headwinds. The strategy’s focus on short-dated bonds also limits duration risk, a key vulnerability when interest rates rise, as seen in 2022, when longer-duration portfolios suffered steep losses.
Market Inefficiencies Drive the Edge
The BBB/BB crossover is often ignored by institutional investors, who typically allocate separately to investment-grade and high-yield funds. This segmentation creates a gap that active managers can fill. The strategy’s blend of short-dated securities ensures capital is reinvested frequently at prevailing yields, compounding returns over time. Meanwhile, the diversified sector exposure reduces the impact of idiosyncratic shocks.
