For many Australian investors, the fixed income component of their portfolios has traditionally looked outward. The belief has been that offshore markets offer greater scale, diversification and sophistication, making global allocations a logical choice. However, a closer look at the domestic fixed income landscape reveals a different story, one that is not only larger and more diverse than often assumed, but increasingly attractive from both a risk and return perspective.
A new white paper, The Untapped Potential of Australia’s Multi-Sector Fixed Income Market, commissioned by Yarra Capital Management and authored by Atchison, explores this opportunity in detail. It challenges the conventional reliance on benchmark-aligned strategies and makes a clear case for investors to revisit how they approach domestic credit.
The starting point is the size and depth of the Australian market itself. At over A$3 trillion, it ranks among the top five fixed income markets globally. Yet most portfolios remain closely tied to narrow benchmarks such as the Bloomberg AusBond Composite 0+ Index. This index, widely adopted by super funds and other institutional investors, serves as the APRA-recognised benchmark for Australian fixed income. As a result, many portfolios are effectively benchmark-hugging, driven by regulatory alignment and peer comparison pressures. However, the index is dominated by sovereign and high-grade public credit, excluding substantial segments of the market including private debt, residential mortgage-backed securities (RMBS), asset-backed securities (ABS) and syndicated credit. The outcome is a constrained portfolio design that often leaves meaningful return and diversification opportunities untapped.
This exclusion is not without consequence. By focusing on benchmark-constrained strategies, investors are potentially foregoing significant sources of yield, diversification and resilience. The paper argues that broadening the opportunity set to include a wider range of domestic credit exposures can materially improve portfolio outcomes, particularly in today’s market environment.
There are several reasons why this discussion is timely. Yield curves have shifted, and traditional sources of fixed income return are offering less margin for error. At the same time, private and structured credit markets are delivering attractive premiums that are not captured by standard indices. Furthermore, while global allocations can provide valuable diversification, they also introduce currency risk and foreign sovereign exposures that may not be desirable in all scenarios.
The white paper presents a series of model portfolios to illustrate the potential of a multi-sector approach. For example, a portfolio that includes both public and private debt exposures would have historically delivered an excess return of approximately 0.80 per cent a year (over rolling five-year periods) over the benchmark, with only modest additional tracking error. A broader portfolio incorporating private debt, securitised assets and other alternatives achieved an even higher excess return of just over 2 per cent a year (over rolling five-year periods), with a tracking error of less than 1 percent. These results were delivered with lower overall duration and volatility, highlighting the potential to take on risk more efficiently when portfolios are diversified across sectors.
What stands out in the analysis is not just the potential for higher returns, but the improved information ratios and the reduced reliance on traditional sources of interest-rate exposure. In a world where bond markets are more sensitive to policy shifts and global volatility, this added flexibility can provide meaningful risk management benefits.
Of course, accessing these opportunities is not without complexity. Implementation requires more than a simple shift in allocation. Successful multi-sector credit investing demands access to high-quality origination, strong credit underwriting, and robust risk frameworks. The paper makes clear that not all managers are equipped to deliver this, and careful due diligence is essential.
For investors, the message is clear. There is an opportunity to reframe how fixed income portfolios are constructed. By expanding beyond traditional benchmarks and incorporating a broader set of domestic credit exposures, investors can enhance returns, manage risk more dynamically and reduce exposure to global uncertainties.
This does not mean abandoning global credit altogether, nor does it suggest that benchmarks have no place. Rather, it calls for a more considered and nuanced approach to portfolio construction. It is about recognising that the Australian fixed income market offers far more than is often assumed, and that with the right design and execution, these opportunities can be captured in a risk-aware and cost-effective manner.
Download the Full White Paper
To access the detailed data, modelling assumptions, sector insights, and implementation guidance, download the full white paper here: