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Market lessons that are never learned

by Lesotho Times
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When we look back at bubbles and crashes through history, we often placate ourselves by thinking “nobody saw it coming back then, but if I had been alive I would’ve seen the idiocy and avoided that bubble.” That’s a much easier narrative to accept than the truth: Many people saw these bubbles and crashes coming, warned other investors, but were patently ignored.

At the heart of any thriving economic system lies the complex interplay between optimism, speculation, caution, and fear. Periodically, this delicate balance is destabilized, giving rise to phenomena that have become all too familiar yet remain deeply perplexing: market bubbles and their inevitable counterpart, crashes.

A market bubble occurs when the prices of assets, often stocks, real estate, or commodities, increase at an exponential rate, far exceeding their intrinsic value. This rapid, unchecked appreciation is usually not backed by corresponding growth in the fundamentals of the asset but is driven more by irrational exuberance, speculation, and the illusion that the asset’s price will continue to rise indefinitely.

However, like all mirages, this illusion cannot last forever. Eventually, there’s a tipping point—a moment of collective realization that these inflated prices are unsustainable. When this moment arrives, the bubble bursts, leading to a sharp decline in prices, often more precipitous and damaging than their initial ascent. This resultant downward spiral is referred to as a market crash.

Understanding the mechanics of bubbles and crashes—how they form, escalate, and dissipate—is not merely an intellectual exercise. It holds profound implications for businesses, policymakers, investors, and even the ordinary man on the street. At the core of these phenomena is not just economic theory, but a deep-rooted human psychology that drives collective behaviour.

Understanding the psychological triggers and responses at play, we can better anticipate potential market disruptions, mitigate their adverse effects, and implement strategies to prevent their occurrence. Moreover, grasping the emotional and cognitive factors that fuel these market events can aid in developing policies aimed at fostering more stable and resilient markets.

At the individual level, this knowledge empowers investors and stakeholders to make more informed decisions, avoiding the pitfalls of herd mentality, and navigating the market landscape with a clearer, more objective lens. In essence, a deep dive into the psychological aspects of market bubbles and crashes offers us tools to transform our approach to investment, risk assessment, and wealth preservation.

Key Characteristics of a Market Bubble include:

Irrational Exuberance: Coined by Alan Greenspan, this term refers to the undue and sometimes baseless optimism that investors exhibit during the inflation of a bubble. Investors buy assets based more on the hope and expectation of future price increases rather than the inherent value of the asset.

High Trading Volumes: During a bubble, there’s a significant increase in the trading volume of the inflated asset, driven primarily by speculation.

Supply and Demand Imbalance: As optimism takes over, demand for the asset skyrockets, often outstripping supply, leading to soaring prices.

Leverage Increase: Investors tend to borrow more money to invest in the booming market, confident that they can repay the debt with the expected higher returns.

Disconnect from Fundamentals: One of the hallmark signs of a bubble is that asset prices are no longer reflective of their fundamental values. Instead, they’re driven by speculation, investor sentiment, and sometimes even sheer greed.

Widespread Media Coverage and Public Involvement: Bubbles often capture widespread public attention. Media amplifies the optimism, drawing even novice investors into the market, hoping to capitalize on the boom.

FOMO (Fear of Missing Out): This social anxiety fuels the bubble further. Seeing others make seemingly easy profits, more and more investors jump in, fearing they might miss out on the opportunity.

Historically, each bubble, while unique in its context and cause, showcases a common thread of unwarranted optimism, speculation, and the eventual painful correction. They serve as powerful reminders of the human tendencies that, when unchecked, can lead markets astray, resulting in significant economic consequences.

Our emotions, beliefs, biases, and social interactions converge, often leading us down a path of collective irrationality. Two primary psychological forces stand out as perennial contributors to the formation of bubbles: overconfidence and over-optimism.


Overconfidence is a well-documented cognitive bias in which an individual’s subjective confidence in their judgments is systematically greater than the objective accuracy of those judgments. This distortion in self-perception becomes particularly pronounced in the realm of financial markets, and its manifestations during the formation of bubbles can be dissected as follows:

Illusion of Knowledge: Investors often believe they have access to unique information or possess superior analytical skills, thinking they can outsmart the market. This illusion leads them to make more trades than might be rationally justified, pushing prices further away from intrinsic values.

Self-attribution Bias: Successes in the market are often attributed to one’s skill or insight, while failures are dismissed as bad luck or external factors. This creates a feedback loop; as prices rise and early investments bear fruit, investors increasingly believe in their own prowess, further stoking their confidence.


While overconfidence revolves around one’s belief in their abilities, over-optimism is more about a general positive expectation of the future. Even when confronted with data suggesting otherwise, individuals tend to remain buoyant about outcomes. This inherent optimism bias can have severe repercussions in financial markets:

One of the hallmarks of a bubble is the widespread belief that the upward trajectory of prices is the new norm. Historical data, fundamental valuations, or even glaring red flags are brushed aside. The narrative focuses on potential gains, with stories of overnight millionaires feeding the optimism frenzy. Anecdotal success stories hold more sway than hard data, and the collective belief becomes that the sky’s the limit.

Investors, buoyed by recent gains and the prevailing euphoria, project current positive trends far into the future without considering potential reversals or market corrections.

In an overoptimistic environment, potential risks are either blatantly ignored or severely downplayed. Warning signs, dissenting voices, or cautionary tales are dismissed as outliers. There’s a collective belief that “this time is different,” and past crashes or bubbles are seen as irrelevant to the current situation.

Optimism can be contagious. When individuals see others investing and making profits, they are more inclined to follow suit, believing that the majority can’t be wrong. This herd mentality can rapidly inflate asset prices as more and more investors jump on the bandwagon, further feeding the bubble.

Herd behaviour in financial markets refers to the propensity of investors to follow and mimic the financial behaviours of a majority, or a herd, either leading to exuberant rallies or panicked sell-offs. This collective action often arises not from individual analysis, but from the innate human inclination towards social conformity.

From our forefathers’ standpoint, there is always safety in numbers. Sticking with the group often meant protection from predators, more efficient hunting, and shared resources. Over time, this group-oriented survival mechanism has become deeply ingrained, manifesting in modern times as a tendency to follow the crowd, even in financial decisions.

In situations of uncertainty, individuals often look to the decisions of others as a source of information. If a significant number of investors are buying a particular asset, it might be perceived by others as a signal that the asset is valuable, leading them to also buy, regardless of their own private information or analysis.

For professional fund managers and investors, there’s a reputational risk associated with deviating significantly from the market consensus. If they make unconventional decisions that lead to losses, they might be viewed as incompetent. However, if they follow the herd and the market crashes, they can defend their actions by saying they were doing what everyone else was doing.

This sobering truth means there will always be bubbles and crashes because we humans have demonstrated little ability to stay disciplined in periods of speculation. There are always warnings of over-speculation and impending crash. The problem is that investors ignore these warnings in their pursuit of getting rich quickly.

Until next week enjoy making money on capital markets.

Thinking of raising capital (issuing shares or bonds), listing shares on the securities market, buying or discounting bonds, Treasury bills, equity trading and capital markets news and information? Contact us today.

Leonard Nyambuya

Katleho Securities, (Member of Maseru Securities Market)

+266 59709178, 53230700, 68730055

lnyambuya@katleho.co.ls, securities@katleho.co.ls, www.katleho.co.ls



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