You check your mutual fund app during a market fall. Your SIP portfolio is down. The red numbers make you uncomfortable. You know, logically, that markets rise and fall. You also know your goals are years away. Yet, the temptation to pause your SIP or switch funds suddenly feels very real.
Most investors assume wealth creation depends on choosing the right mutual fund. In reality, what often matters just as much is how you behave after investing.
The biggest threat to long-term returns is rarely the market itself. It is fear, impatience, overconfidence, and the small emotional decisions that quietly interrupt compounding.
This is where behavioural finance becomes deeply relevant.
As India’s mutual fund industry continues to grow, with assets under management crossing ₹70 lakh crore and SIP participation reaching record highs as of 2026, investor access has improved dramatically. Investing has become easier. Good investing, however, remains difficult.
Because while apps have reduced friction, they have not removed emotion.
At Nevesh, we believe investing is behavioural before it is technical. A well-designed portfolio can only work if you can stay invested long enough to let it work. Understanding behavioural biases is often the first step toward becoming a calmer, better investor.
Why Behavioural Biases Matter More Than You Think
A behavioural bias is a mental shortcut that influences decision-making, often without you realising it.
These biases are not signs of poor judgment. They are part of being human. The problem begins when emotions start overriding discipline.
Research from DALBAR’s long-running investor behaviour studies has repeatedly shown that individual investors often underperform the very funds they invest in, simply because they enter and exit at the wrong time. Barber and Odean’s behavioural finance research has similarly shown that investors who trade more frequently often earn lower returns.
The lesson is uncomfortable but important.
Your mutual fund may be doing its job. You may be the one interrupting the outcome.
1. Loss Aversion: Why Temporary Losses Feel Bigger Than Future Gains
A 10 percent decline in your portfolio can feel deeply unsettling. A 10 percent gain, on the other hand, rarely creates the same emotional intensity.
This is loss aversion.
Psychologically, investors experience the pain of losses more strongly than the satisfaction of gains. It is why many people stop SIPs during corrections, avoid investing after a market fall, or refuse to sell underperforming funds simply because they do not want to “book a loss”.
India saw this clearly during the Covid market crash in 2020, and again during periods of volatility in 2022 and 2025. Many investors paused SIPs out of fear. Those who stayed invested benefited when markets recovered.
A ₹5,000 monthly SIP invested consistently over 15 years can potentially build meaningful wealth. But compounding only works if contributions continue.
Interrupting an SIP during market stress is a bit like getting off a train halfway because the tunnel feels too dark.
The discomfort is temporary. The destination still matters.
2. Herd Mentality: Following the Crowd Into Expensive Decisions
Investors often feel safer doing what everyone else is doing.
If everyone is talking about mid-cap funds, thematic funds, or a new fund offer, it can feel risky not to participate.
This is herd mentality.
Indian markets have seen this repeatedly. During bull runs, mutual fund inflows often peak when valuations are already elevated. Investors enter because optimism is everywhere. During corrections, flows slow down precisely when better opportunities may exist.
The same behaviour is visible beyond mutual funds. SEBI’s recent studies on F&O participation continue to show that a large majority of retail traders lose money, yet participation keeps rising because social proof can be powerful.
The crowd can offer comfort. It rarely offers clarity.
Good investing often requires doing the emotionally difficult thing, which is staying steady when others are chasing excitement.
3. Recency Bias: Believing Recent Performance Will Continue Forever
A fund delivered 22 percent returns over the last year. It climbs to the top of every ranking table. Suddenly, it feels like the obvious choice.
That instinct is recency bias.
Investors naturally give too much importance to what has happened recently and assume it will continue.
This is why people often switch into top-performing mutual funds just after a strong run. Unfortunately, by the time performance becomes visible, much of the opportunity may already be behind them.
Indian investors often move between large-cap, mid-cap, and sector funds based on whichever category performed best in the previous year.
Markets do not reward rear-view-mirror investing.
Looking at rolling returns over five years, fund consistency, and alignment with your goals tells a more useful story than last year’s leaderboard.
4. Anchoring Bias: Waiting for the “Perfect” Entry Point
Many investors become attached to specific market levels.
“I will invest when Nifty falls below 24,000.”
“I will buy that fund when the NAV comes back to where it was.”
This is anchoring bias.
You become mentally tied to a reference point, even when that number has no real significance.
Indian markets have repeatedly punished investors who wait endlessly for the perfect entry point. After corrections, many people hesitate, expecting further declines. Markets recover before they act.
Meanwhile, systematic investors continue their SIPs and quietly accumulate units.
Trying to time markets often feels smart. Staying invested usually works better.
5. Confirmation Bias: Seeking Information That Supports What You Already Believe
Once investors form an opinion, they tend to seek information that confirms it.
If you believe technology funds will outperform, you may only read bullish articles about technology. If you believe equity markets are unsafe, you may focus only on stories about crashes.
This is confirmation bias.
Social media has amplified this tendency. Algorithms feed you more of what you already engage with, creating financial echo chambers.
The danger is not disagreement. The danger is incomplete information.
Better investors actively challenge their own beliefs. They ask what they might be missing.
Sometimes, protecting your portfolio begins with questioning your own certainty.
6. Overconfidence Bias: Mistaking Luck for Skill
A few good investment decisions can quickly create confidence, sometimes too much confidence.
An investor who chooses one winning fund may begin believing they can consistently predict market trends, rotate sectors, or outperform through active switching, this is an overconfidence bias.
Behavioural studies suggest that frequent decision-making often creates more mistakes, not better outcomes. India’s digital investing boom has made investing beautifully convenient. It has also made portfolio tinkering dangerously easy.
Every switch feels productive, and not every action adds value.
Often, the most disciplined investors are simply the ones who resist the urge to interfere.
7. Status Quo Bias: Staying Comfortable, Even When It Costs You
Not all biases lead to action. Some lead to inaction. Many investors continue keeping large amounts of money in savings accounts or fixed deposits, even when inflation quietly reduces purchasing power. This is status quo bias.
The familiar feels safe. For conservative goals, products like PPF and fixed deposits absolutely have their place. But relying only on traditional savings can create its own long-term risk.
A young professional saving ₹10,000 a month for retirement may need equity exposure, mutual funds, and long-term compounding to outpace inflation meaningfully.
Sometimes the biggest financial mistake is not what you do it is what you avoid doing because change feels uncomfortable.
Pro Tip: Your Behaviour Is Part of Your Asset Allocation
Most investors think asset allocation only means equity, debt, and gold but there is another layer to this which is behavioural allocation.
If a portfolio keeps you calm enough to stay invested, it is probably better than a theoretically perfect portfolio that keeps you anxious.
The best investment plan is the one you can stick with.
How Indian Investors Can Protect Themselves From Behavioural Biases
Biases cannot be eliminated completely. They can, however, be managed.
A few simple habits help.
- Automate your SIPs
Automation removes decision-making from moments of fear. - Review less frequently
Checking your portfolio every day increases emotional reactions. Monthly or quarterly reviews are usually enough. - Focus on goals, not market headlines
A retirement SIP should not be judged by what happened this week on the Sensex. - Diversify thoughtfully
A balanced mix of equity, debt, and tax-efficient options like ELSS, NPS, and PPF can reduce emotional stress. - Write down your investment rules
Decide in advance when you will invest more, rebalance, or make changes. Good decisions made calmly often protect you from emotional ones made later.
The Quiet Advantage of Calm Investing
Markets will always fluctuate. Headlines will always create urgency. There will always be a new trend, a new fear, or a new reason to react.
The investor who builds wealth is often not the one who predicts best. It is the one who stays steady. Patience does not feel exciting. Discipline rarely feels dramatic. But over time, calm investing tends to outperform emotional investing. That is not just behavioural finance rather practical wealth building.
The Nevesh View Point
At Nevesh, we believe the hardest part of investing is rarely selecting the right mutual fund. It is managing yourself while markets test your patience.
Good financial decisions are often about what you avoid doing. Avoid panic. Avoid noise. Avoid chasing what everyone else is chasing. Technology can help you invest faster. Only discipline can help you stay invested longer.
If you are building wealth through SIPs, mutual funds, or long-term investing, your biggest edge may not be knowledge. It may simply be your ability to remain calm when others are reacting.
That quiet consistency is where real compounding begins.
FAQs
What are behavioural biases in mutual fund investing?
Behavioural biases are emotional and psychological tendencies that influence how you make investment decisions. They often lead investors to act irrationally, such as stopping SIPs during market falls or chasing recently top-performing funds.
Why do investors stop SIPs during market corrections?
Many investors react to temporary losses through loss aversion, which makes short-term declines feel more painful than they actually are. Pausing SIPs during corrections can interrupt compounding and reduce long-term returns.
How can I avoid emotional investing decisions?
Automating SIPs, reviewing your portfolio less often, focusing on long-term goals, and maintaining proper asset allocation can reduce emotional reactions and improve investment discipline.
Is following trending mutual funds a bad idea?
Not always, but investing simply because a fund is popular can lead to herd-driven decisions. A fund should fit your financial goals and risk appetite, not social sentiment.
Why is investor behaviour as important as fund performance?
Even strong mutual funds cannot help if investors enter and exit at the wrong times. Behaviour determines whether you stay invested long enough for compounding to work in your favour.
Risk Disclaimer:
This article is intended for educational purposes only and should not be considered investment advice. Investments in mutual funds and market-linked instruments are subject to market risks. Please read all scheme-related documents carefully and consult a qualified financial advisor before making investment decisions.