How many mutual funds should you hold in your portfolio?

The mutual fund industry in India has never been more accessible. With thousands of schemes across dozens of fund houses available on a dozen different apps, building a portfolio has never been easier. But ease of access has created a new problem that barely existed a generation ago: over diversification.

Indian retail investors are increasingly holding portfolios of 15, 20, or even 30 mutual funds, convinced that each new fund adds protection, when in reality many of them are quietly cancelling each other out and adding nothing but complexity.

So what is the right number? The answer is not a single magic figure, but there is a range that makes sense for most investors, and more importantly, there is a clear framework for thinking about the question that will serve you far better than any arbitrary rule.

Before answering how many funds you should hold, it helps to understand why so many investors end up holding too many. The pattern is remarkably consistent. An investor starts with one or two funds recommended by a friend or advisor.

A few months later, they read about a top performing fund in a magazine and add it. Then a new fund house launches a scheme with a compelling theme, perhaps electric vehicles or digital India, and that gets added too. Every new market trend, every year end best performer list, every WhatsApp tip adds another fund to the pile.

This accumulation happens gradually and feels rational at each step. After all, what is the harm in adding one more fund? The harm, it turns out, is substantial. Each new fund comes with its own expense ratio, its own tax treatment on redemption, its own SIP date to track, and its own performance to monitor.

The administrative burden alone grows quickly. But the deeper problem is that a portfolio of 20 equity funds is very likely to behave almost exactly like a portfolio of 3, because beyond a certain point, the underlying stocks they hold overlap so heavily that the additional funds provide no meaningful diversification.

True diversification means holding assets that do not move in the same direction at the same time. When one asset falls, another holds steady or rises. This is the mathematical foundation of portfolio construction, and it is why diversification genuinely reduces risk.

The problem is that most investors conflate the number of funds they hold with the degree of diversification they have achieved. These are not the same thing. A portfolio of five large cap equity funds from five different fund houses is not diversified in any meaningful sense. All five funds hold largely the same set of companies: the Nifty 50, the top Sensex stocks, the same Reliance and HDFC Bank and Infosys positions that appear in almost every large cap scheme. You have five fund managers, five sets of fees, and five performance reports to read, but you have essentially one investment.

Genuine diversification comes from holding funds that cover genuinely different segments of the market, or different asset classes entirely. A large cap fund and a small cap fund are genuinely different. An equity fund and a debt fund are genuinely different. An Indian equity fund and an international fund are genuinely different. Adding a sixth large cap fund to a portfolio that already has two is not diversification. It is duplication wearing the disguise of caution.

Fund overlap is one of the most underappreciated problems in retail investing in India, and it is particularly acute in the equity large cap and flexi cap categories. The reason is structural: SEBI guidelines require large cap funds to invest at least 80 percent of their corpus in the top 100 companies by market capitalisation. This means every large cap fund in India is drawing from an identical pool of 100 stocks. The differences between them, in terms of holdings, are marginal.

A useful exercise is to take any two large cap or flexi cap funds in your portfolio and compare their top 10 holdings. You will almost certainly find that 7 or 8 of the same companies appear in both lists, often with very similar weightings. Now imagine doing that comparison across 5 or 6 such funds. The redundancy becomes obvious.

The same issue, to a lesser extent, exists in mid cap and small cap categories. The universe of quality mid and small cap stocks is finite, and active fund managers within those categories tend to cluster around the same high conviction names. Two small cap funds from quality fund houses will share far more holdings than their separate identities suggest.

For the vast majority of Indian retail investors, a well constructed portfolio of 4 to 6 mutual funds is sufficient. This is enough to achieve genuine diversification across market caps, asset classes, and geographies, without the administrative chaos and hidden redundancy of a larger portfolio. Here is what such a portfolio might look like.

Core Equity: One Large Cap or Index Fund

A single large cap fund or, better yet, a Nifty 50 or Sensex index fund forms the bedrock of the portfolio. It gives you stable, low cost exposure to India's largest and most liquid companies. Index funds deserve special mention here because their low expense ratios, typically 0.10 to 0.20 percent versus 1.5 to 2.5 percent for active large cap funds, mean more of your return stays with you. Over a decade, that difference compounds into a meaningful sum.

Growth Equity: One Mid Cap or Small Cap Fund

For investors with a longer time horizon and the stomach for volatility, one well chosen mid cap or small cap fund adds genuine return potential that large caps cannot deliver. These segments of the market are where active fund management earns its fees, because the universe is less efficiently priced and skilled managers can genuinely add alpha. One fund in this category is enough. Two begin to overlap. Three almost certainly do.

Diversification: One Flexi Cap or International Fund

A flexi cap fund, managed by a manager with genuine allocation conviction, can serve as a bridge between large and mid cap exposure and react to changing market conditions. Alternatively, an international or US focused fund adds genuine geographic diversification, reducing your dependence on the Indian economic cycle alone. Either works. Holding both is reasonable. Holding three funds in this category is not.

Stability: One Debt Fund

Every portfolio benefits from a debt component, both for stability and for rebalancing. The appropriate category depends on your investment horizon and tax situation. Short duration or corporate bond funds suit investors with a 2 to 3 year view. Dynamic bond or gilt funds suit those with longer horizons who can tolerate some interest rate risk. One well chosen debt fund is all you need here.

Optional: One Thematic or Sectoral Fund

If you have a high conviction view on a particular theme, whether infrastructure, banking, consumption, or healthcare, one thematic fund can be a reasonable satellite allocation. The key word is one, and it should represent no more than 10 to 15 percent of your total portfolio. Thematic funds carry concentrated risk by design, and holding multiple thematic funds simply piles risk upon risk without the diversification benefit that justifies the exposure.

Beyond the mathematical redundancy, over diversification carries costs that are easy to underestimate. Every mutual fund has an expense ratio that is deducted daily from the fund's net asset value. A portfolio of 20 funds with an average expense ratio of 1.5 percent is quietly consuming a significant portion of your returns every single year, most of it for no additional benefit.

There is also the tax complexity. Every time you redeem units from a fund, a tax event is triggered. Equity funds held for less than a year attract short term capital gains tax at 20 percent. Those held for more than a year attract long term capital gains tax at 12.5 percent beyond the one lakh exemption. With 15 or 20 funds generating redemptions at different times for rebalancing or emergency withdrawals, tracking the tax implications becomes genuinely complicated and errors become more likely.

Finally, there is the monitoring burden. A good investment requires periodic review, not daily obsession, but some review. Understanding whether a fund is underperforming because of temporary market conditions or a structural problem with the fund manager requires time and attention. Dividing that attention across 20 funds means giving each fund so little scrutiny that you will likely miss genuine warning signs until it is too late.

It is worth being honest with yourself about whether your current portfolio has grown beyond the point of usefulness. Some clear signs that it has:

› You cannot name all the funds you hold without checking your app or statement.

› You hold more than two funds in the same SEBI category, for example three large cap funds or four flexi cap funds.

› You have added a fund in the last year because it appeared on a best performer list, without checking what you already held.

› Your SIP amounts are spread so thinly across funds that some receive less than Rs 500 per month.

› You have not reviewed your portfolio performance holistically in the last 12 months.

› You feel anxious about consolidating because you are not sure which funds to keep.

If more than two or three of these apply, the most valuable thing you can do for your portfolio is not to add another fund, but to reduce the number you already hold.

Consolidating a bloated fund portfolio is not as painful as it sounds, but it does require a methodical approach. Start by categorising every fund you hold by SEBI category. Group your large cap funds together, your flexi cap funds together, your mid cap funds together, and so on. Within each category, identify the fund with the strongest long term track record and the most consistent fund management. That is the one you keep.

Before redeeming the others, check the tax implications. Units held for more than a year in equity funds will be taxed at 12.5 percent on gains above one lakh. If you are sitting on large unrealised gains in a fund you want to exit, it may be worth doing the redemption across two financial years to manage your tax liability, staying within the annual exemption limit each year.

For ongoing SIPs in funds you want to phase out, the simplest approach is to stop the SIP immediately and then redeem the accumulated corpus at a tax efficient pace. Do not let inertia keep you investing in a fund you have already decided to leave.

A word specifically about index funds, because they change the calculus somewhat. A well diversified portfolio built entirely around index funds can comfortably hold fewer actively managed funds alongside it. The reason is that a Nifty 50 index fund already holds 50 companies in a single instrument, eliminating the need for multiple actively managed large cap funds entirely.

An investor who holds a Nifty 50 index fund, a Nifty Next 50 or mid cap 150 index fund, a small cap index fund, and an international index fund has built a portfolio of four funds that covers an extraordinary breadth of the investable universe at a fraction of the cost of an actively managed equivalent. Adding more active funds on top of this structure does not improve it. It dilutes it.

The passive investing approach is still relatively nascent in India compared to markets like the United States, but it is growing rapidly. Assets under management in index funds have grown from a few thousand crore rupees five years ago to several lakh crore rupees today. The cost and simplicity advantages are compelling, and for most investors, a core passive portfolio supplemented by one or two active funds in categories where genuine alpha exists, such as mid and small caps, is a sensible and increasingly popular approach.

There is no single right answer that fits every investor, but the following general framework works well across most situations.

The Beginner Investor

If you are new to mutual funds, start with one fund and one fund only. A Nifty 50 index fund is the ideal starting point. It is low cost, well diversified, and requires no selection skill. Once you are comfortable with how SIPs work, how NAVs move, and how to read a fund statement, consider adding a second fund in a genuinely different category. Build slowly and deliberately.

The Intermediate Investor

With 3 to 5 years of investing experience, a portfolio of 4 to 5 funds covering large cap, mid or small cap, one debt fund, and optionally one international fund is entirely sufficient. Resist the temptation to add more simply because you have more knowledge. Knowledge should make your portfolio simpler, not larger.

The Experienced Investor

If you have been investing for a decade or more and have a clear view of what role each fund plays in your portfolio, 6 to 8 funds is a reasonable upper limit. Beyond 8, the gains from additional diversification are genuinely negligible for most individual investors, and the complexity is not worth it. If you find yourself regularly exceeding this number, ask honestly whether each fund is earning its place.

The question of how many mutual funds to hold is really a question about what investing is for. If it is for peace of mind through the illusion of safety, then 20 funds might feel satisfying even if it achieves nothing. But if it is for building real, compounding, long term wealth, then the answer is as few funds as necessary to achieve genuine diversification across your chosen asset classes and nothing more.

Four to six funds, chosen deliberately, reviewed annually, and held patiently through market cycles will outperform a portfolio of 20 funds assembled reactively in almost every scenario. Not because of better stock picking, but because of lower costs, cleaner tax management, clearer monitoring, and the discipline that comes from making every fund earn its place.

Disclaimer: This article is published for educational and informational purposes only by Equity Research India (www.equityresearchindia.com). It does not constitute investment advice, a solicitation, or a recommendation to buy or sell any security. Readers should conduct their own research and consult a qualified financial advisor before making any investment decisions. Past market behaviour is not a guarantee of future results.