Analyses
A New Management Approach for a New Market Regime
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Insight Article
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mai 09, 2024
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mai 09, 2024
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A New Management Approach for a New Market Regime |
KEY TAKEAWAYS
Today’s new interest rate and inflation regime, which deviates significantly from the past 40 years, makes it more difficult to achieve stable target returns. We nonetheless believe this can still be achieved. How? By modifying one’s investment process that recognizes this change in regime and is complemented by unique portfolio construction and implementation techniques.
The downward interest rate cycle from 1981 – 2021 that spurred a massive bull market in bonds has now come to a screeching halt—and this changes everything. Why? In the simplest terms, interest rates have risen well above their previous lows, making diversification between stocks and bonds problematic, and stable returns harder to generate. We find this untenable and a problem for investors, something we discussed in detail in our whitepaper: The Case for Stable Risk Adjusted Returns: Why Now?
The good news? We offer what we believe is a viable solution.
Finding a Solution To Achieve Higher Returns in a New Market Regime
When we manage portfolios, our primary goal is to achieve stable target returns that are designed to compound predictably over time. In order to do this, a flexible weighting between fixed income and equities must be actively managed, with both target returns and risk awareness in mind. But that’s not all. We must also consider the construction of portfolios to incorporate style and factor differences that may work better depending on the market regime.
One such change in market regime is that we expect the correlation between fixed income and equity returns to be much higher than they have been over the past few decades. Display 1 illustrates the long-term correlation of returns between stocks and bonds, where correlations have risen sharply over the past several years—and where we think they are likely to stay. We expect this to be the case because one of the primary drivers of rising correlations is the interest rate and inflation cycle, and their combined effect on bond returns.
During periods like the late 1940s and into the 1950s, there were policies designed to suppress interest rates and increase nominal GDP, in order to pay off the deficit the U.S. accumulated during World War II. As a result, correlations fell during this period. Then in the 1960s and 1970s bond yields were allowed to rise and later accelerated when inflation took root. This had the effect of increasing stock and bond return correlations from lower to higher levels across both decades, where the interest rate and inflation cycles were key drivers of that rise.
Similarly, correlations declined as interest rates and inflation fell due to globalization policies that began in the late 1990s. Correlations declined further with the introduction of quantitative easing that greatly suppressed interest rates because of the global financial crisis of 2007-2009. Now that the policies designed to keep interest rates low have lapsed, combined with the fact that inflation has now become a tangible risk, we may likely see these return correlations rise and stay elevated for an extended period. This constitutes a regime change. A higher inflation regime alongside higher equity-bond return correlations (Display 2).
One of the most important observations from Display 1 is that it is neither normal—nor common— for bonds to be a natural hedge for equities. Instead, their relationship is highly regime-dependent and reliant on exogenous factors like policy and otherwise. Our concern as an investment manager is that many people may think the latest 40-year period is the “way things will continue to be” and that we may eventually revert to the norm of this most recent past.
However, we think differently about this scenario and are looking for innovative investment solutions outside of what may commonly be thought of as the norm. In other words, a greater allocation to bonds may not consistently mean less risk for returns. The balance of risks may likely vary more over time because bond returns are less stable. This could emerge from a set of parameters in which we see stronger growth that benefits equities, but includes modestly rising inflation that ultimately detracts from bond returns, something which has already started (Display 3). Our view is that it requires a recognition of this regime change and the flexibility to make an adjustment to portfolio construction in order to achieve stable target risk-adjusted returns. Why? Mainly because a static balance of equities and bond (e.g., 60/40) may very well be suboptimal when interest rates no longer trend lower.
Now, being active and reducing risk may run counter to each other in the eyes of some investors. However, our analysis reveals that in an environment of changing interest rates, inflation and policy, active management, coupled with an eye toward reducing risk, need not conflict. In fact, we strongly believe they complement each other.
Being Active Also Means Identifying When To Switch Between Regimes
Active management is often thought of as making tactical changes to positions that comprise an investment strategy. It has been the case that active meant being focused on changing weights between bonds and equities, but it is more than that today. We believe being active now means that a manager can change their investment style to reflect regime changes. Active management that includes portfolio reconstruction to match the right market regime is the essence of our approach.
As we see it, there are four ways to evolve our Global Balanced Risk Control (GBaR) strategy in order to add value:
Markets have three degrees of freedom: they can trend higher, trend lower or move sideways. Said differently, either a market is trending or reverting to the mean. Many strategies are designed rigidly to perform better in one environment or the other. In our case we have designed a strategy to take advantage of the opportunities of both regimes. In our case, the choice is not either/or, but both.
So, which is better? As we see it, one is not necessarily better than the other. Instead, the ability to be flexible and reposition a portfolio that alternates between regimes may be optimal and produce better results over time. Skill is required to identify which regime the markets are in or, as importantly, heading into. We rely heavily on the top-down analysis from our Capital Markets research team, a key team within the larger Portfolio Solutions Group, to identify these regimes.
We can amplify the momentum characteristics of our risk control strategy when the market is trending, but then can also reconstruct the portfolio to be optimal in a mean-reverting regime when markets are trendless. In other words, we can swap out the momentum factor as a driver of returns for something else, such as value. In fact, this is what we are doing now.
It is worth repeating that active management that includes portfolio reconstruction to match the right market regime is essential. This is a key change we are implementing.
Portfolio Construction and Implementation Drive Alpha
Our goal is to manage the high return correlations between stocks and bonds, one where bonds no longer hedge equities as consistently as previously. This is one part of our solution, but we also need to construct a portfolio and implement asset allocation properly to complete the process. Let us provide an example.
In this case, we construct portfolios by selecting allocations to active managers, and spend substantial effort identifying ones who can improve the risk/return characteristics of our portfolios. Manager selection requires a detailed understanding of how their returns are generated, as well as the types of investment risks they are taking. Our analysis shows whether a manager generated strong performance through favorable security selection (alpha) or simply through high levels of market exposure (beta).
To understand a manager’s return profile, we use factor models. These models quantify the proportion of a manager’s risk and return that comes from common factors, also known as biases. Examples of a manager’s biases are country, style, sector, volatility and momentum (among others). With factor modeling, we isolate manager-specific returns (alpha) and the active risks taken by the manager to achieve those returns, which stem from each manager’s unique trading style. Factor analysis can help identify skilled managers by focusing on their stock-picking capabilities, and better control portfolio risk, reducing the portfolio’s overall volatility.
Onboarding factor tilts, or exposures from managers, may be undesired in our strategic asset allocation, as they may be suboptimal to the goals we are trying to achieve. So, when constructing a portfolio, we need to manage and control these biases, aiming to reduce a portfolio’s volatility to be able to deliver persistent and stable performance. Our approach is to run an optimization process to reduce unwanted exposures and aim to maintain a manager’s alpha. This is done by creating and investing in a different basket exposure, the aforementioned tactical basket, designed to express our overall portfolio tactical views.
The optimizer process looks through the underlying managers’ portfolios, identifying how the portfolio compares to the benchmark across all common factor exposures (style, sector, country, etc.) and then buying securities in the benchmark that have factor exposures that are “missing” from the portfolio (i.e., underweight), but are included in the benchmark. This approach seeks to move the managers’ factors closer to the benchmark’s factor exposures.
For example, if we make the tactical decision to position in growth stocks, the optimizer will create an efficient exposure that is to our choice instead of onboarding other exposures from a manager that we neither wanted nor chose. The goal of the optimization program is to make this an efficient investment process for us.
We definitely want to retain a manager’s alpha within our asset allocation. The active risk that the optimizer cannot diversify away is stock-picking risk, which stems from individual names selected by the underlying managers that cannot be mapped to a common factor. Stock picking is the core of what you pay for in active management.
In this case what investors are essentially left with is a portfolio with primarily stock-picking risk - the choices from active managers—while you have for the most part eliminated the risk stemming from factors that you do not want exposure to in the portfolio. This is not to say that we will not have a view on those factors in the portfolio, but those would be expressed as our tactical decisions.
For more, please refer to our previously published whitepapers on this topic: Active Management and Dynamic Factor Modeling and New Dimensions in Asset Allocation.
Market Structure
We have demonstrated that our GBaR strategy can achieve a stable return volatility by actively managing a multi-asset portfolio. But this is not enough.
The new market regime requires us to evolve our portfolio construction and implementation techniques with the goal of increasing/achieving stable returns that come from identifying and isolating beta and alpha from our investment selection process.
The benefit is to switch the focus of our strategy on optimizing the potential to capture market returns rather than sacrificing returns merely for the sake of setting a volatility range. Said differently, our priority shifts to capturing returns made available by the market while still maintaining a risk-aware discipline that seeks to optimize alpha.
In this form of strategic asset allocation, when this method is applied, the alpha contribution to our portfolio does not solely come from our risk control process. This is also an important evolution to our investment strategy because in addition to risk awareness we will also control for active management exposure, via our tactical baskets.
Simply stated, we are isolating the exposures we want to have in our investment portfolio and reducing the exposure to risks we don’t want. This helps us hyper-focus on portfolio return characteristics that both match our views and client goals.
We believe we have a proven track record that supports our capabilities to adapt to changing market regimes through portfolio construction and implementation techniques while remaining risk aware. We also have the capabilities and experience to use multiple asset classes as a necessary requirement to provide this solution and achieve the goals that investors demand from our strategies.
Conclusion
As markets evolve, we must evolve with them. But what has remained the same is our objective to deliver stable and persistent returns no matter what the regime is, or what the regime may become. We believe the efficient frontier, which illustrates the relationship between risk and return, has shifted down and toward the right, making it harder to achieve the same risk-adjusted returns experienced from 1988 – March 2024 (Display 5). As a result, we need to employ the additional portfolio management techniques described to source additional alpha and enhance risk-adjusted returns. This is necessary to achieve required stable target returns in the future market environment.
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Chief Investment Officer
Portfolio Solutions Group
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Head of Portfolio Solutions Group
Portfolio Solutions Group
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Executive Director
Portfolio Solutions Group
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