Behavioural Biases That Kill Your Investment Returns

MFD

Introduction

When we think about investing, most of us focus on numbers, returns, charts, and market news. But here’s the truth: your biggest enemy in investing is often not the market — it’s your own mind.

Time and again, investors lose money not because they picked the wrong mutual fund or stock, but because their decisions were clouded by emotions and biases. These psychological traps, called behavioural biases, can quietly eat away at your wealth-building journey.

The good news? Once you understand these biases, you can take simple steps to avoid them. Let’s look at some of the most common ones — and how you can protect yourself.

What Are Behavioural Biases in Investing?

In simple terms, behavioural biases are mental shortcuts or emotional reactions that affect how we make financial decisions. These biases often feel natural in the moment but lead to poor outcomes in the long run.

Think about it: why do so many investors buy when markets are at their peak and panic-sell when markets fall? Why do some people keep chasing “hot funds” instead of sticking to a plan? It’s not logic — it’s bias.

1. Overconfidence Bias

What it is:
Overconfidence makes us believe we’re smarter than the market. Many investors think they can consistently predict where the market will go next or pick “winning funds” every time.

Example:
Imagine an investor who frequently buys and sells based on gut feeling or short-term news. While they may get lucky occasionally, over time, studies show that frequent trading often leads to lower returns than simply sticking with a disciplined SIP in mutual funds.

Remedy:

  • Diversify your investments instead of putting all eggs in one basket.
  • Avoid unnecessary trading.
  • Rely on data and professional advice, not hunches.

2. Herd Mentality

What it is:
This bias makes people follow the crowd — investing because “everyone else is doing it.” It’s what fuels bubbles and panic sell-offs.

Example:
Think back to the 2008 financial crisis or the COVID-19 market crash in 2020. Many investors sold off in panic when the market was down, locking in losses. But those who stayed disciplined and continued their SIPs ended up benefiting massively during the recovery.

Remedy:

  • Remember: your financial goals are unique. Stick to your plan, not someone else’s.
  • Don’t let FOMO (fear of missing out) drive your investments.
  • Review your risk profile instead of copying others.

3. Loss Aversion

What it is:
Loss aversion is our tendency to fear losses more than we value gains. In investing, this often leads to exiting investments too early, just to avoid short-term pain.

Example:
An investor sees their equity fund fall by 10% in a market dip. Fearing bigger losses, they redeem their units. Months later, the market recovers, but the investor misses out on the growth because they acted out of fear.

Remedy:

  • Accept that short-term volatility is part of investing.
  • Focus on long-term horizons (5–10+ years).
  • Revisit your asset allocation instead of reacting emotionally.

4. Recency Bias

What it is:
Recency bias makes us believe that what happened recently will continue to happen. We give too much importance to short-term events.

Example:
An investor sees that a particular mutual fund gave high returns last year. Assuming it will continue forever, they switch all their money into it. A year later, performance drops, and they regret the decision.

Remedy:

  • Always look at long-term performance (5–10 years) before judging a fund.
  • Avoid chasing “last year’s star performer.”
  • Stick to your asset allocation strategy.

5. Confirmation Bias

What it is:
Confirmation bias makes us seek only the information that supports what we already believe, while ignoring evidence that disagrees with us.

Example:
An investor believes a certain sector (say, technology) will always do well. They only read positive news about it and ignore warnings about overvaluation. When the sector corrects, their portfolio suffers.

Remedy:

  • Actively seek out opposing viewpoints.
  • Consult financial advisors who can give an unbiased opinion.
  • Base decisions on holistic data, not just information that feels comfortable.

How to Guard Yourself Against These Biases

Knowing about biases is only half the battle. The real challenge is controlling them when making financial decisions. Here are some practical steps:

A Personal Investor’s Checklist

Before making any investment decision, ask yourself:

  1. Am I reacting emotionally or rationally?
  2. Does this decision align with my long-term goals?
  3. Am I basing this on solid data or just market noise?
  4. Have I considered alternative viewpoints?

Tools That Help

  • Systematic Investment Plans (SIPs): Automate your investing so you don’t get swayed by emotions.
  • Regular Portfolio Reviews: Keep track of your asset allocation rather than chasing returns.
  • Financial Advisors/Distributors: A professional perspective helps you stay disciplined.

Conclusion

Investing isn’t just about choosing the right mutual fund or stock — it’s about managing your own behaviour. Overconfidence, herd mentality, loss aversion, recency bias, and confirmation bias are traps that even experienced investors fall into.

But once you recognize them, you can train yourself to avoid impulsive decisions and stick to your long-term plan. Remember, controlling your behaviour often adds more to your returns than chasing the “next best” investment.

At NJ Wealth, we believe in helping investors build wealth with discipline and clarity. Whether it’s through SIPs, goal-based planning, or expert guidance, we’re here to keep your journey on track.

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