Making Decisions Under Uncertainty

In wealth management, certain situations make discernment even more decisive than analysis itself.

Today, wealth management operates in an environment saturated with information: economic data, market flows, research, models, opinions and a constant stream of news.

In such a context, competitive advantage no longer comes solely from access to information. Data is widely available, and so are analyses.

Yet some decisions remain difficult. Not because information is lacking, but because several coherent interpretations of the same situation may coexist.

Major investment mistakes rarely result from a lack of knowledge.

More often, they arise when it becomes difficult to prioritise sometimes conflicting information, to arbitrate between several plausible interpretations, or to maintain a consistent course of action in an uncertain environment.

It is precisely in such situations that discernment becomes decisive.

Discernment is not the ability to identify the “right” interpretation of the market.

It is about constructing a sufficiently coherent reading of a complex reality to make investment, allocation and risk-management decisions, even when several plausible interpretations coexist.

It is not an additional layer of knowledge, but a capacity to put multiple sources of information into perspective, to distinguish what matters from what does not, and to develop a sufficiently coherent understanding from which to act.

The following situations illustrate different contexts in which this capacity becomes particularly important.

1. Buying When Everything Suggests You Should Sell

Financial markets generally anticipate future economic realities: growth, earnings, consumption or monetary policy.

But during periods of crisis, something changes fundamentally.

The market is no longer focused solely on anticipation; it becomes focused on survival.

Investors reduce risk urgently. Liquidity dries up. Fear becomes dominant.

Asset prices no longer reflect only economic deterioration. They also reflect investors’ reactions to that deterioration.

It is precisely in such moments that certain decisions become particularly difficult. The negative news remains, and the risks are still real. Yet markets sometimes begin to react less violently to information that, only a few weeks earlier, would have triggered a new wave of selling.

At that point, two coherent interpretations may coexist.

The first leads investors to remain on the sidelines: the environment remains fragile and uncertainties are still numerous.

The second suggests that markets may already have absorbed a significant portion of those risks, and that certain opportunities are beginning to emerge.

Discernment does not consist in knowing with certainty which interpretation is correct.

It consists in recognising the tension between them, understanding what has already been reflected in prices, and deciding which interpretation appears most coherent in light of the risk one is prepared to assume.

A crisis often becomes investable long before it becomes reassuring.

This, however, requires preparation. Maintaining liquidity reserves, avoiding situations that could lead to forced selling, or having strategies capable of generating cash during periods of stress become essential.

In such extreme moments, the difference between being subjected to the market and retaining a genuine capacity to act becomes considerable.

2. Understanding the Risk-Reward Equation

Financial performance is rarely dissociated from the risk taken to achieve it.

A high-yield bond, a highly cyclical stock or a concentrated investment may offer attractive returns precisely because they involve greater uncertainty.

Conversely, a diversified investment in a broad index such as the S&P 500 generally offers a more resilient trajectory, albeit with more moderate return expectations.

This relationship appears obvious. Yet it is frequently overlooked.

Many investors simultaneously seek:

• high returns;

• low volatility;

• permanent liquidity;

• and an almost complete absence of losses.

In reality, these objectives are often incompatible.

It is precisely in such situations that discernment becomes necessary.

The difficulty does not stem from a lack of information. It stems from the coexistence of several legitimate objectives that cannot all be satisfied simultaneously.

Wanting higher returns, greater security, more liquidity and greater stability is perfectly understandable.

The question is no longer simply: how much risk am I willing to take?

It becomes: which priority am I willing to favour?

Is this investment truly necessary to achieve my long-term objective?

A robust portfolio is not built simply by accumulating attractive opportunities.

It is also built through the choices, trade-offs and renunciations that preserve its overall coherence.

3. Identifying True Value Creation: Alpha

In asset management, there are essentially two main sources of performance.

The first comes from the market itself: beta.

It can be accessed easily through ETFs, indices or other low-cost listed instruments.

The second comes from a manager’s ability to generate additional performance: alpha.

This distinction may appear theoretical. In reality, it is fundamental.

Active management is often expensive. And in many cases, fees ultimately absorb a significant portion of the value actually created.

The challenge is not simply to identify a good manager. It is also to determine what role active management should genuinely play within a portfolio.

A manager may be talented. Their track record may be strong. Their process may be compelling. Yet this does not always justify their inclusion in an allocation.

The question then becomes: does this exposure genuinely add something to the portfolio?

This value creation must be:

• durable;

• understandable;

• repeatable;

• and, above all, useful within the overall portfolio construction.

An excellent manager in isolation is not necessarily a good investment if it serves no specific purpose within the broader balance of the portfolio.

An investment that makes sense today may gradually lose its rationale as its environment, scale or process evolves.

In wealth management, the question is not only: “Was this decision relevant when it was made?”

It is also: “Is it still coherent today?”

4. Distinguishing a Revolution from a Mania

Economic history advances through waves of innovation.

Electricity, the automobile, the Internet and, today, artificial intelligence have each profoundly transformed society while also giving rise to significant excesses.

Periods of extraordinary value creation are almost always accompanied by phases of euphoria.

Capital flows in, valuations become extreme, and investors sometimes end up buying a promise rather than a reality.

Yet the existence of a bubble does not necessarily mean that the underlying revolution is false.

The Internet experienced a major speculative bubble. That did not prevent the technology from fundamentally transforming the global economy.

Artificial intelligence will most likely transform our societies, our businesses and our economies.

It is already experiencing its first episodes of excessive valuation and overinvestment.

The difficulty lies precisely in the coexistence of these two realities.

An innovation can be genuinely transformative while simultaneously giving rise to excessive valuations.

These two propositions do not cancel each other out.

The mistake is often either to reject everything because of the excesses, or to buy everything because of the future.

Discernment then consists less in choosing immediately between these two interpretations than in recognising the element of truth contained within each of them.

5. The Discipline of Restraint

Modern markets reward speed. Information circulates instantly. Reactions become immediate. Every market movement seems to call for a decision.

Everything now pushes investors to act.

The market environment creates a constant state of agitation: continuous flows of information, endless recommendations, opportunities presented as urgent, and the psychological pressure to act in order not to “miss out”.

Yet a large proportion of portfolio decisions add very little real value.

Some studies even suggest that more than 80% of transactions executed by investors are unnecessary or counterproductive in the long run.

The difficulty does not always lie in choosing between different courses of action.

Sometimes, it lies in the ability not to act immediately.

Every purchase, every sale and every portfolio rotation may appear justified when considered in isolation.

Yet a succession of decisions that make sense in the short term does not necessarily produce a coherent long-term strategy.

Excessive portfolio turnover often ends up damaging performance:

• emotions take over;

• transaction costs accumulate;

• allocations become inconsistent;

• and the long-term strategy gradually disappears behind a succession of short-term reactions.

Between fear, excitement, market movements and a constant stream of opportunistic investment ideas, the temptation is often to confuse activity with progress.

Discernment then takes a more discreet form.

It consists in recognising that not every situation calls for action, and that preserving a coherent course may sometimes be more difficult than changing it.

In many cases, the most demanding decision is not to act. It is to decide not to do so.