Selling near a market trough and re-entering near a market high can result from prospect theory, which describes how losses feel more intense than equivalent gains. Fear can prompt action before a calm, data-driven assessment is complete.

A systematic process is designed to apply the same analytical framework in volatile and calm conditions. Opes Borsa's Trend Signal is a probabilistic directional assessment, not a prediction or investment advice, and is intended for investors exploring a process less dependent on real-time emotional responses.

This explainer is based on the source article's account of prospect theory, behavioural finance, emotional responses to volatility, and quantitative processes.

The claim: emotional timing can drive sell-low and buy-high decisions

Selling at the point of maximum pain and re-entering at the point of maximum optimism is presented in the source as a predictable result of human cognition meeting market volatility. The pattern is not necessarily a sign of poor intelligence or bad stock selection. It can emerge when emotional responses influence the timing of decisions.

The source describes this behaviour as a form of mistiming. Fear can lead to a late exit near a market bottom, while renewed optimism can contribute to a late entry near a market top.

Prospect theory and the loss response

Daniel Kahneman and Amos Tversky's prospect theory, published in 1979, describes how people evaluate outcomes relative to a reference point rather than only in absolute terms. In investing, that reference point is typically the entry price.

The source states that losses are felt with approximately twice the psychological intensity of equivalent gains. A position falling from 100 to 80 can therefore feel more significant than the pleasure associated with an equivalent gain.

The source also describes neuroimaging research in which financial losses activate the amygdala, the brain's threat-response centre, more intensely than equivalent gains activate reward circuits. In this framing, a drawdown can trigger a threat response even though financial markets are not survival-threat environments.

Emotional latency and delayed decisions

Emotional Latency is the delay between a market event and a data-driven assessment of it, caused by the time required for human emotion to process and respond. By the time fear has fully activated, the event that triggered it may already be reflected in market prices.

This means a decision can be based on past conditions rather than present ones. During a sharp decline, the pressure to exit may increase with each session, while the analytical response arrives later.

Why the pattern can appear across many investors

The source says research on retail investor flows consistently finds that net outflows from equity funds peak near market troughs, while net inflows peak near market highs. It presents this as the aggregate result of many people applying an evolved threat-response system to a financial context.

Why awareness alone may not change behaviour

Knowing about prospect theory does not necessarily prevent its effects. The source explains that emotional responses can occur faster than analytical responses, with fear activating before the prefrontal cortex has contextualised the situation.

Under stress, a reminder about behavioural finance may not be enough to change the decision process. The source therefore frames the alternative as process design rather than relying solely on willpower to override an emotional response.

What a systematic process does differently

A quantitative system has no nervous system, does not anchor to a personal entry price, and does not experience the accumulated distress of a drawdown. Its analytical framework can remain the same during volatile sessions and calmer market conditions.

Opes Borsa's Trend Signal

Opes Borsa's Trend Signal is a probabilistic directional assessment generated by the platform's quantitative model. It is not a prediction or investment advice. It is a data-driven assessment of probable direction produced without the emotional weighting described by prospect theory.

This process fits the investor who is exploring a systematic framework that is less dependent on real-time emotional responses. It does not remove market volatility or make the outcome of any decision certain.

The Panic Premium as a behavioural cost

The Panic Premium is the source's term for the cost associated with emotionally driven mistiming. It refers to the percentage of potential returns surrendered when Emotional Latency contributes to a late exit near the bottom or a late entry near the top.

The source describes the effect as potentially compounding across a portfolio and over a decade. Its central distinction is between decisions shaped by real-time emotional responses and decisions made within a systematic framework.

Frequently asked questions

Why do investors sell at the bottom and buy at the top?

Investors can sell near market bottoms and buy near market tops because losses feel more intense than equivalent gains, while fear and optimism can influence decisions after market conditions have already changed.

What does prospect theory explain about investing?

Prospect theory explains that people evaluate gains and losses relative to a reference point, typically an entry price, and that losses are felt with approximately twice the intensity of equivalent gains.

What is Emotional Latency?

Emotional Latency is the delay between a market event and a data-driven assessment of it while human emotion processes and responds to the event.

Can awareness of investor psychology prevent emotional decisions?

Awareness alone may not prevent emotional decisions because fear can activate before analytical reasoning has contextualised the market event.

What is the Opes Borsa Trend Signal?

The Trend Signal is a probabilistic directional assessment generated by Opes Borsa's quantitative model. It is not a prediction or investment advice.

Key terms

• Prospect Theory: Kahneman and Tversky's 1979 model describing how people evaluate gains and losses relative to a reference point, with losses weighted approximately twice as heavily as equivalent gains.

• Reference Point: The baseline against which gains and losses are evaluated, typically the price at which a position was entered.

• Emotional Latency: The delay between a market event and a data-driven assessment while human emotion processes and responds.

• The Panic Premium: The source's term for the cost, expressed as a percentage of potential returns, associated with emotionally driven sell-low and buy-high decisions.

• Trend Signal: Opes Borsa's probabilistic directional assessment generated by its quantitative model, not a prediction or investment advice.