Master your emotions when investing
March 8, 2025
5 min read
Imagine you've worked hard and saved CHF 250,000. You invest it proudly in the stock market. Everything is going great — until the markets suddenly turn. First it's a 5% loss. No big deal. But what happens when that 5% becomes 30% or even 50%? Suddenly your portfolio is down CHF 125,000. That's not play money — that's the value of a small apartment or years of work.
This is the exact moment that determines whether you'll become a successful investor. Not your knowledge of stocks, not your timing, not your broker — but how you handle your emotions. This article shows you why staying calm delivers the best returns and how to avoid the most common emotional traps.
Contents
The Emotional Waterfall
When markets drop, we go through a predictable emotional downward spiral. It almost always looks the same:
Phase 1 — Optimism: "Losses are part of the game, I'll buy more!" You're rational, you've read the books, you know corrections are normal. All good.
Phase 2 — Doubt: "Is it ever going back up?" The loss keeps growing, the news gets more dramatic, your colleagues are talking about selling. You start questioning your strategy.
Phase 3 — Panic: "SELL EVERYTHING NOW!" The loss feels physical. You can't sleep, you check your portfolio three times a day, you consider moving everything to cash.
This is exactly where the mistake happens. When we panic-sell, we make the loss permanent. We exit at the lowest point and miss the recovery. The book The Psychology of Money by Morgan Housel describes this phenomenon brilliantly: the greatest returns don't come from perfect timing, but from simply staying invested.
The Most Expensive Emotion
Studies show that the average retail investor loses 1.5–3% in annual returns — not because of poor stock picks, but because of emotional decisions. Panic selling at the bottom and euphoric buying at the top costs more than any fee ever could.
Why Losses Are Mathematically Worse Than Gains
Mathematics can be brutal: if you lose 50% of your capital, you don't need a 50% gain to break even — you need a 100% gain. The deeper you fall, the harder it is to climb back.
The numbers: a 10% loss requires an 11% recovery. A 20% loss needs 25%. At 30%, you already need 43% to get back. And at a 50% loss, you need your portfolio to double — that's 100% growth — just to return to your starting point.
Beyond roughly 30%, it becomes exponentially harder. This is the point where most investors give up and sell — precisely when a recovery is historically most likely.
The Lesson
Investing isn't about maximising returns — it's about keeping losses small enough that you can still sleep at night. If you panic-sell at -50%, the mistake wasn't at the moment of selling — it was taking on more risk than you could emotionally handle.
5 Strategies to Beat Emotional Decisions
1. Use Dollar-Cost Averaging (DCA)
Nobody has a crystal ball. Since short-term market movements are unpredictable, it's wise to spread your entry over time rather than going all-in on a single day. With a regular savings plan, you invest consistently and benefit from the averaging effect: in bull markets, your existing capital participates in the upswing; in corrections, you buy shares at lower prices, laying the foundation for the next recovery. A classic win-win.
More on why automation is your strongest tool: The Standing Order: Your Most Powerful Ally.
2. Practice Healthy Distance
Modern technology gives us real-time access to market data — but it's a double-edged sword. Checking your portfolio daily creates unnecessary stress. Psychologically, the pain of a loss weighs roughly twice as much as the joy of an equal-sized gain (this phenomenon is called loss aversion).
If you constantly watch the ticker, you risk reacting emotionally to normal fluctuations instead of sticking rationally to your strategy. Our tip: check your portfolio once a month — not more often. Let compounding do its work.
Want to go deeper on the psychology of investing? In our Book Club, we've summarised Thinking Fast and Slow and The Psychology of Money — two of the best books on the topic.
3. Think in Percentages, Not Francs
As your wealth grows, the dimensions change: a 10% decline feels completely different at CHF 250,000 than at CHF 10,000. But the mathematics remain the same — the time needed to recover is identical in percentage terms.
Train yourself to evaluate your portfolio performance in percentages. This helps you maintain perspective even with large sums. A 5% drop on CHF 250,000 is CHF 12,500 — that sounds dramatic. But it's the same 5% decline you weathered without panic at CHF 10,000.
4. Build Your Sacred Emergency Fund
Peace of mind in the stock market only comes when your daily life is financially secure. As a rule, only invest money you won't need for the next 5 to 10 years. When your rent and fixed costs are untouchable, even heavy market turbulence loses its terror.
The rule of thumb: 3–6 months of salary as an emergency fund in a savings account before you invest a single franc. This is the best insurance against panic selling at the wrong moment. For a practical budget framework, see our 70/20/10 rule in the Standing Order article.
5. Trust Quality Over Hype
It's much easier to stay calm when you know what you own. Meme stocks, cryptocurrencies with no substance, and speculative bets create maximum emotion with minimum foundation. Quality companies with stable cash flows, strong brands, and growing dividends give you the confidence to sit through corrections.
At arvy, you invest in exactly these types of companies — and the founders invest their own money in the same portfolio (Skin in the Game). If we stay invested through corrections ourselves, you can trust that the strategy is built for the long term.
Conclusion: 10% Knowledge, 90% Discipline
Successful investing is 10% knowledge and 90% discipline. Those who master their emotions and limit their losses give compounding the time it needs to work its magic.
Don't let the numbers in your portfolio drive you crazy. Your goal is long-term wealth building, not a quick thrill. A savings plan, a clear strategy, and the discipline to not panic-sell — that's the whole secret.
"The stock market is a device for transferring money from the impatient to the patient." — Warren Buffett
Switch off emotions. Switch on a savings plan.
A savings plan invests automatically — whether markets are up or down. No timing, no panic, no stress. From CHF 1/month.
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This article was written by Patrick, Co-Founder & CFA, and reviewed by Florian Jauch. Last updated March 2026.
Disclaimer: This article is for general information purposes only and does not constitute personal investment advice. arvy is a wealth manager supervised by FINMA. Imprint & Legal Notice
