🧘Investor psychology
Behavioral biases, panic, FOMO and anchoring — discipline beats IQ. How to master your head, not just the market.
Investor psychology — overview
The most common cause of poor investing outcomes is not bad stocks but bad decisions made under emotional pressure. Investor psychology studies how fear, greed and cognitive biases systematically sabotage otherwise sensible investors. Discipline beats IQ: someone with an average strategy who follows it usually does better than a clever person who sells at every panic and buys at every euphoria. Among the trickiest biases are loss aversion (a loss hurts more than an equal gain pleases), confirmation bias (we seek only information that confirms our view), anchoring (fixating on irrelevant numbers such as purchase price) and herd behavior (FOMO — fear of missing out). Panic-selling at the bottom and euphoric buying at the top are exactly the opposite of what works long-term — yet they are emotionally the strongest. The defense is a plan set in advance: entry and exit rules, position size and a trade journal that forces you to reflect on decisions. This is exactly why QMA offers a trade journal and analytical tools — not to decide for you, but to shrink the room for impulsive, emotion-driven mistakes. This section describes individual biases and practical ways to counter them.
Investor psychology articles
Qu'est-ce qui est plus rentable : parier sur des matchs sportifs ou investir en actions ?
Tout parjeur connaît cette sensation d'attendre le dernier but dans les arrêts de jeu. Mais que se passerait-il si nous mettions ces mêmes émotions et cet argent dans un jeu où les mathématiques ne jouent pas franchement contre nous ?
Casino vs. Stock Market: Why One Bet Has a Negative Expected Value and the Other Does Not
Lotteries and stocks may seem like a gamble on chance. However, the difference isn't in luck—it's in the mathematics of expected value. Let's break it down with specific numbers.
The Betting Myth That Destroys Budgets: Why Luck Doesn't Decide
Most bettors believe they just need a bit of luck. However, data tells a different story — it's the expected value that matters, not luck. Let's take a look at a fair comparison of the numbers.
Why You Need a Written Trading Plan Before You Buy Anything
A written trading plan is your most important tool – it protects you from emotional decisions and helps you learn from every trade. Find out what a plan must contain, and use the sample template inside.
FOMO in Numbers: How to Tame the Fear of Missing Out with Cold Math
You see a chart climbing by tens of percent, and you get an uneasy feeling in your stomach that everyone around is getting rich while you're missing the train? Before you succumb to panic, let's explore how to tame emotions using exact numbers and evolutionary psychology.
Eurojackpot or Stocks? The Math of Quick Wealth vs. the Quiet Power of Compound Interest
You're standing at the checkout in a newsstand, holding a filled-out Eurojackpot ticket, already picturing which seaside villa you'll buy. But what if you sent the same hundred crowns to the stock market instead?
Que faire quand les actions chutent : rester calme en période de baisse (et ce qu'il ne faut PAS faire)
Les marchés chutent et vous êtes anxieux ? Règle numéro un : ne vendez pas par peur. Ce qu'il ne faut PAS faire, ce qu'il faut faire à la place, et comment décider sur la base des données plutôt que de la panique.
Why the Brain Forces Investors to Sell Before a Stock Can Profit
You sell for a profit, feel like a genius — and then the stock continues to soar without you. Why does our brain compel us to take profits too early and how to kick ourselves for it.
Why Lotteries Return Only Half of Your Bet and the Stock Market Works Differently
Lotteries typically return about half of what you bet, with the betting company taking a margin from each ticket. The stock market plays a different game. We'll demonstrate this with numbers — and without promises of getting rich quick.
Comment surmonter la peur d'acheter sa première action
La peur avant votre première action est tout à fait normale — peur de perdre de l'argent, de mal choisir le moment, de ne pas en savoir assez, de paraître ridicule. Voici un guide calme et pratique qui recadre chacune de ces peurs. L'antidote n'est pas le courage ; ce sont de petits pas et un processus simple.
Comment éviter la vente panique dans un marché baissier : comportement des investisseurs et règles de succès
Dans un environnement de marché baissier, la vente panique est l'une des erreurs les plus courantes que commettent les investisseurs. Cet article se concentre sur les erreurs comportementales telles que l'aversion aux pertes et le comportement grégaire, ainsi que sur la façon d'y faire face.
When Doing Nothing is the Best Action: The Psychology of Investment Inaction
Why is it harder for the human brain to sit on its hands than to constantly click the 'Buy' or 'Sell' button? Discover how to resist the urge to act at the wrong moment and why inaction is often the most profitable strategy.
Discipline Over Emotions: How to Set Investment Rules Your Mind Won't Cheat
Why do we all plan to buy during a dip on paper, but when markets actually turn red, we find ourselves staring at our phones, paralyzed? Learn how to tame your inner monkey with bulletproof rules and systems.
FOMO (Fear of Missing Out) en investissement : comment éviter les erreurs et reconnaître les véritables opportunités
Le FOMO est un compagnon dangereux en matière d'investissement, susceptible de mener à des décisions irrationnelles. Dans cet article, nous explorons pourquoi courir après les sommets ne fonctionne jamais et comment distinguer une véritable opportunité d'investissement d'un simple engouement.
7 Erreurs qui Ruinent les Traders Débutants (et Comment les Éviter)
La plupart des débutants ne perdent pas à cause de mauvais choix, mais à cause de sept schémas de comportement récurrents. Ce guide sans jargon détaille chacun d'eux — de l'absence de gestion du risque au trading de revanche en passant par le FOMO — avec une solution simple pour chaque erreur.
10 Common Beginner Mistakes: How to Spot Them Before They Hurt
Beginners often lose money not because they cannot read charts, but because they break their own rules under pressure. This lesson explains 10 typical psychological mistakes and practical counter-strategies, including the role of the QMA investment journal.
Peut-on vivre du trading en bourse ? Une réponse honnête
Rarement oui, majoritairement non — 70–90 % des traders actifs perdent. Ce dont vous avez vraiment besoin (capital, avantage, discipline, psychologie), pourquoi la plupart échouent, et la voie réaliste.
How to Be Profitable Long Term: Process, Discipline, and Small Edges
Long-term profitability does not come from one brilliant call, but from small edges repeated with discipline. This article shows a realistic investor process: risk management, low costs, time in the market, and learning from a journal.
Kotva a potvrzovací zkreslení: dvě pasti, do kterých padáme
Vaše hlava si zapamatuje první číslo, které uvidí — a pak celý svět vykládá tak, aby jí dalo za pravdu. Dvě tiché pasti, které vám berou peníze víc než jakýkoli krach.
Loss Hurts Twice as Much as Gain Pleases: What It Means for Your Investing
You buy when there's euphoria, and sell when there's blood in the streets. Get to know both of your inner voices before they run away with your decision again.
Frequently asked questions
What is loss aversion?
Loss aversion is a psychological phenomenon where a loss hurts roughly twice as much as an equal gain pleases. It leads investors to hold losing positions too long and sell winners too early.
What is FOMO and how do I counter it?
FOMO (fear of missing out) is the fear of missing an opportunity that drives buying at the peak of euphoria. The defense is a predefined plan and rules that prevent an impulsive buy just because "the price is flying up".
QMA provides analytical and educational tools, not investment advice. Past performance does not guarantee future results.