Fixed Income Indexing: A Commitment to the Bottom

December 01, 2022 | Frank Valle, CFA, CAIA, Senior Research Analyst

Two-column chart shows universe percentile for the Core Aggregate and Core Plus Aggregate indices by calendar year using rolling 5-year period. Chart subtitle: Most active fixed income managers have outperformed the Aggregate index over the last 20 years. Chart visual description: Y-axis crosses x-axis at maximum, and shows Universe Percentile from 0 to 100 going down in increments of 25. X-axis shows years from 2000 to 2021 and is labeled Rolling 5-Year Period Ending December 31. Core Aggregate columns are in dark grey and Core Plus Aggregate are in light green. Chart data description: 2021 column places Core Aggregate at 89th percentile and Core Plus Aggregate at 97th. The Core Aggregate ranked in a better percentile for only 5 of the years shown, as described in the text. Chart source: eVestment as of November 30, 2022. End chart description. See disclosures at end of document.

The equities market has experienced a tectonic shift from active to passive investing, with passive investors benefiting from index strength and meaningful fee savings. In fixed income, however, investing in indexing strategies tends to be a commitment to the bottom. The Bloomberg Aggregate Index — the standard index for broad fixed income investing — tends to underperform most active strategies. While there may be shorter time periods where active managers trail the index, over longer time periods the index generally falls within the bottom quartile of universe performance and often in the bottom decile.

Due to the size of and inefficiencies within the fixed income market, there should be many opportunities for managers to take active risks and generate excess returns. Two common active management strategies for aggregate mandates are core and core plus, differentiated by the level of active risk and return objectives. Core strategies should be expected to outperform the index by 50–100 bps and core plus by 100–150 bps over a full market cycle. The vast majority of active managers outperform the index. In the core plus universe, the index’s rolling 5-year return was in the bottom quartile 14 of the last 20 years and in the bottom decile in 10 of those years. In the core universe, where the level of active return is lower, the index on a rolling 5-year basis was in the bottom quartile in 11 of 20 years.

To be fair, there are times when indexing pays. Many fixed income managers are “active” by systematically overweighting corporate and structured credit while underweighting Treasuries and agency mortgages to create a yield advantage. Outyielding the benchmark works well until it doesn’t. During risk-off periods of spread widening, the index tends to be one of the better performers within the universe. The two best examples of this are 2002 and 2008, when markets experienced a precipitance of spread widening due to the dot com bubble bursting and the sub-prime mortgage crisis, respectively. Those periods erased years of prior active management outperformance, though having a yield advantage remained beneficial longer-term, with those active managers outperforming in subsequent years.

While active is often the preferred method of accessing the fixed income market, an aggregate indexed strategy may be helpful as a risk management tool and indexed options may help investors take more tactical positions within fixed income sub-asset classes. Overall, investors should make sure they understand the risks and benefits of investing in active versus passive within fixed income and work with their consultant to create a portfolio that best serves their needs.

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The opinions expressed herein are those of Marquette Associates, Inc. (“Marquette”), and are subject to change without notice. This material is not financial advice or an offer to purchase or sell any product. Marquette reserves the right to modify its current investment strategies and techniques based on changing market dynamics or client needs.

 

Frank Valle, CFA, CAIA
Senior Research Analyst

Get to Know Frank

The opinions expressed herein are those of Marquette Associates, Inc. (“Marquette”), and are subject to change without notice. This material is not financial advice or an offer to purchase or sell any product. Marquette reserves the right to modify its current investment strategies and techniques based on changing market dynamics or client needs.

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