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From complexity to confidence in investing

19 August 2025 | Investments | General | - Eugene Botha, Head of the Research Hive at Momentum Investments

Investment management is fundamentally about improving the odds of success in an environment defined by uncertainty. While market commentary often centres on returns, what truly matters to clients is whether their portfolios deliver the outcomes they need, when they need them, and within tolerable levels of risk. Achieving this consistently requires more than intuition or historical precedent – it demands evidence-based frameworks that connect probabilities, risk management, performance drivers, and skill to practical decision-making.

Using an outcome-based lens

A foundational shift in thinking begins with how we define and measure risk. Rather than viewing risk as volatility, it is more meaningful to frame it in terms of the probability of achieving specific investment outcomes. This outcome-based lens challenges the conventional pursuit of higher expected returns, which can inadvertently increase the likelihood of missing client objectives. By focusing on and measuring the odds of success, investment committees can better align portfolios with real-world goals, enabling structured discussions, strategy comparisons on a common scale, and a disciplined approach to balancing growth potential with the need to stay within acceptable risk corridors.

This reframing transforms decision-making. It clarifies trade-offs – not just between return and risk, but also between the allure of higher growth and the discipline required to maintain a high probability of success. The central question becomes: Are we optimising for headline returns, or for the probability of delivering the results clients truly need? To ultimately deliver on this requirement, you must be able to measure every investment decision you make through a measured probabilistic lens.

Turning statistics into tangible insights

Building on this foundation, it is important to make downside risk both visible and actionable. Traditional measures like Value-at-Risk (VaR) and Conditional VaR (CVaR) have long been recognised for their theoretical value, but their practical application has often been limited. To address this, Momentum Investments developed a dedicated VaR dashboard that integrates six decades of historical returns, Monte Carlo simulations of crisis periods, and forward-looking market assumptions. This tool tracks and reports the likelihood and severity of losses across various time horizons, turning abstract statistics into tangible insights.

Importantly, the dashboard incorporates the psychological reality that losses are felt more intensely than gains – a principle rooted in Prospect Theory. A key innovation is the Client-Experience VaR (CE-VaR) that reflects how investors perceive drawdowns relative to recent portfolio peaks. This client-centred metric bridges the gap between statistical models and investor experience, informing pre-trade sizing, tactical asset allocation, and ongoing portfolio adjustments. It also enhances transparency and consistency in reporting to oversight committees and clients.

Monitoring, and understanding, style exposures

While VaR helps quantify how much risk a portfolio carries, it does not explain why returns behave as they do. Understanding the drivers of portfolio behaviour requires clarity about the styles and factor exposures influencing performance. This is where Returns-Based Style Analysis (RBSA) becomes essential. RBSA uses time series of returns to dynamically quantify how much of an equity asset manager’s behaviour is attributable to systematic factors such as Value, Momentum, and Quality.

RBSA offers a scalable, transparent method for tracking whether managers are delivering exposures aligned to their philosophical approach. It translates manager behaviour into a consistent factor taxonomy, bridging rigorous quantitative models with qualitative manager research. This enables better diversification analysis and ensures that style exposures are continuously monitored and understood.

Skill vs luck

Another core piece of the multi-manager investing puzzle is evaluating whether a manager’s performance reflects genuine skill or mere luck. Traditional peer and benchmark comparisons often obscure this distinction. Momentum Investments addresses this challenge through the MIPODS framework, which builds on Ron Surz’s original Portfolio Opportunity Distributions (PODS concept). MIPODS simulates thousands of hypothetical “no-skill” portfolios tailored to each manager’s style constraints, liquidity limitations, and benchmark awareness.

These simulations create a bespoke distribution of potential returns that any manager without skill could have achieved by random chance. By comparing actual performance to this distribution, the investment team can estimate the likelihood that observed returns reflect true skill. MIPODS also models realistic constraints, controls for turnover frequency and size to avoid stale factor environments, and incorporates transaction costs to produce robust benchmarks. Real-world case studies illustrate how MIPODS identifies managers who consistently rank in the top quartile relative to their simulated peers, empowering more effective capital allocation and accountability.

Tilting the odds in the investor’s favour

Taken together, these concepts demonstrate how advanced tools can transform investment complexity into structured, actionable insights. Each framework replaces time-consuming, ad hoc processes with disciplined workflows that accelerate analysis, improve transparency, and increase confidence in decision-making.

Robust portfolio construction is no longer just about selecting asset classes or managers. It’s about designing systems that quantify risk precisely, track style exposures continuously, and assess skill objectively. While markets remain unpredictable and no framework can eliminate uncertainty, these tools show that rigorous measurement and evidence-based decision-making can decisively tilt the odds in favour of investors.

 

Mindfields 2nd edition 2025 | Engineering certainty in an uncertain world

Welcome to another edition of Mindfields, our research publication. 

At its core, investment management is the science of improving the odds of success amid uncertainty. Investment success is often framed as the simple pursuit of returns. However, what matters to clients is whether portfolios deliver the outcomes they need, when needed, and with risks they can tolerate. Delivering that consistently requires more than intuition or historical convention: it demands evidence-based frameworks that link probabilities, risk management, understanding performance drivers, and skill to practical decision-making.

This collection of research articles explores that interplay through four focused lenses. Together, these perspectives offer a multidimensional view of how we design, monitor, and refine strategies to improve the odds of success while managing the perils of uncertainty.

 

 


As always, we appreciate any feedback or comments you might have on any of our publications.

Also, look out for more exciting research from our Research Hive in the future or visit our website here for previous editions of Mindfields.


Kind regards

Eugene Botha
Head: Research Hive
Momentum Investments

 

 

 

 

From complexity to confidence in investing
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