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By Dhan Saarthi • 8 mins read
Every December, the return charts appear. Fund platforms, apps, and financial portals rank mutual funds by one-year returns. And almost every January, a fresh wave of investors shifts money into last year's #1 fund — expecting the same ride to continue.
It rarely does.
This pattern — buying what performed best recently — is called return chasing. It is one of the most common and most damaging mistakes in retail investing. And it is surprisingly easy to fall into, even for investors who know better.
This article explains exactly why the top fund of last year so often disappoints this year, what actually drives those headline returns, and how to build a more durable approach to fund selection.
Most fund discovery still happens through sorted return tables. Open any major mutual fund app and the default view shows funds ranked by one-year returns — the biggest number sitting at the top, practically inviting a click.
The logic feels intuitive: "This fund beat all others last year. The fund manager must know what they're doing." But that reasoning rests on a flawed assumption — that what drove last year's outperformance will continue to drive this year's returns.
The one-year return of a mutual fund tells you about the past. It says very little about the next twelve months — and almost nothing about the next ten years.
Understanding why requires a look at what actually sits behind that impressive return number.
A fund does not top the annual return chart in a vacuum. There are specific structural reasons — most of which are time-bound and not repeatable on demand.
A fund that was heavily positioned in a particular sector — say, capital goods, real estate, or PSU stocks — during that sector's bull run will look exceptional. If the market rotates away from that sector the following year, the same concentration that powered the rally now becomes a drag.
Sector cycles in Indian markets can be sharp and short. A fund manager may not be wrong for long — but the timing matters enormously to one-year return rankings.
Fund categories themselves go in and out of favour. Small-cap funds can dominate return charts when small-cap indices surge, only to fall sharply in risk-off environments. Value funds may lag for years and then sprint. Momentum-style funds can shine in trending markets and hurt badly during reversals.
The point is: the top fund often reflects which category or style had its moment, not necessarily which fund manager is more skilled over time. When you buy that fund after seeing last year's returns, you are buying it at precisely the moment its tailwind may be weakening.
Academic research in financial markets — and industry studies across countries — consistently shows that strong short-term performance in mutual funds tends to mean revert. Funds that dramatically outperform in one period often move closer to average performance over the following period. This is not a guarantee, but it is a well-established tendency.
The intuition is straightforward: extreme outperformance often comes from a concentrated or high-risk bet that paid off. Repeating that same bet requires the same conditions to exist — which markets do not reliably provide.
| Year | Often Top-Ranked Category | Common Outcome the Following Year |
|---|---|---|
| Thematic / Sectoral surge year | Sectoral or thematic fund | Sector correction or underperformance |
| Small-cap rally year | Small-cap fund | Heightened volatility, possible drawdown |
| Value fund revival year | Value / contra fund | Depends on sustained style tailwind |
This does not mean you should avoid small-cap or sectoral funds entirely. It means you should hold them with clear intent, a matching risk appetite, and a long enough horizon — not because they topped the chart last year.
Return chasing has a name in behavioural finance: recency bias. It is the human tendency to give disproportionate weight to recent events when predicting the future.
When a fund posts 45% in a year, the mind anchors on that number. It feels real. The three years before, when it returned 8%, feel distant. So you invest — often at the peak of the cycle that just ended.
Recognise this pattern?
Each of these feels rational in the moment. But each reflects recency bias — letting recent performance replace a clear investment rationale.
The uncomfortable truth: by the time a fund makes it to the top of a public ranking, most of the return is already behind you. The investors who benefited most entered before the surge — not after reading about it.
Selecting a fund is not about finding last year's winner. It is about finding a fund that fits your goal, your risk profile, and your holding horizon — and then assessing whether it has a credible, consistent process behind its performance.
Instead of a single one-year return, look at rolling returns — how the fund has performed over 3-year and 5-year windows, measured repeatedly. This smooths out the noise of one exceptional year and shows you how consistent the fund has been across different market conditions.
A fund with a strong average rolling return and low variance is typically more reliable than one with a single explosive year surrounded by mediocrity.
Compare a fund to others in its category — not to all funds. A small-cap fund ranked against a large-cap benchmark will always look different. The question is: within the small-cap universe, has this fund held its ground consistently? A fund that is in the top half of its category across multiple 3-year periods signals durability, not just luck.
Returns alone do not tell you how much risk was taken to earn them. Two funds can return 18% in a year — one with calm, consistent monthly gains, and another with a wild roller-coaster. The second fund may not suit a conservative investor even if the annual number looks the same.
You do not need to calculate these yourself. But when comparing two funds, these numbers add essential context to the return figure.
Every fund you hold should have a reason to be there. "It was the best last year" is not a reason. But "it gives me diversified mid-cap exposure within my growth allocation and has done so consistently" is. When you can articulate why a fund belongs in your portfolio, you are investing — not chasing.
First — do not panic sell just because this year's returns have normalised. One underwhelming year does not make a fund bad.
Ask yourself three questions:
Why did I buy this fund? If the answer is purely "it topped the chart," that is a flag — but not necessarily a reason to exit immediately.
Does this fund fit my portfolio's goal and risk profile? If the fund category aligns with your allocation plan, staying invested may make sense. If it was an impulse buy into a hot sector, reassess.
Has anything fundamentally changed about the fund? A change in fund manager, investment mandate, or a structural shift in the fund's strategy is a valid reason to review. Temporary return normalisation may not be.
If you decide to exit, also consider the tax implications — exit loads and capital gains treatment differ based on how long you have held the fund. Do not let a behavioural correction create a tax problem.
The more important action is to use this moment to build a proper framework for your portfolio — so the next fund you add belongs there for a clear reason, not because of last December's return chart.
Portfolio Health Check
Dhan Saarthi's portfolio health analysis looks at your actual holdings — fund quality, overlap, category balance, and alignment with your goals. No guesswork. No return chasing.
Check My Portfolio Health →The most dangerous phrase in mutual fund investing is: "This fund gave 50% last year."
It is not wrong information. It is incomplete information. And in investing, incomplete information used confidently often produces the worst decisions.
Last year's top fund is not last year's fund anymore. Markets have moved, valuations have shifted, the sector or style that powered that return may now be fully priced in. What you are buying today is a fund at today's price and today's positioning — and that needs to be evaluated on today's merits.
The investors who build lasting wealth through mutual funds are not the ones who found the hottest fund. They are the ones who found the right fund for their goal, held it with discipline through normal performance cycles, and resisted the pull of the shiny new return chart every January.
That discipline is not glamorous. But it compounds.
This article is for educational purposes only and does not constitute financial advice. Mutual fund investments are subject to market risks. Please read all scheme-related documents carefully before investing. Past performance is not indicative of future returns. Consult a SEBI-registered investment advisor for personalised guidance.
