Key Takeaways
- Portfolio overlap occurs when multiple mutual funds you hold invest in the same underlying stocks.
- Five mutual funds do not guarantee diversification — check actual holdings, not fund category names.
- AMFI mandates monthly portfolio disclosure — use this official data to check overlap for free.
- Significant overlap means you pay multiple expense ratios for essentially the same exposure.
- Consolidate overlapping funds and add genuinely different asset classes for real diversification.
Introduction
Many investors feel smart holding five or six mutual funds across different AMCs. But here is a hard truth: five popular large-cap funds might all have Reliance Industries, HDFC Bank, and Infosys as their top 3 holdings. You are not diversified — you are just paying five expense ratios for the same basket of stocks. This hidden risk is called portfolio overlap, and it is more common than you think.
How Do I Check If My Mutual Funds Have Overlapping Stocks?
AMFI (Association of Mutual Funds in India) mandates that every fund house disclose its complete portfolio holdings every month. This data is publicly available on the AMFI website and on each AMC's website. To check overlap: download the portfolio statements for each fund you hold, list the top 20 holdings per fund, and count how many stocks appear in multiple funds. If more than 40% of your combined portfolio is in the same stocks, you have significant overlap.
A Real-World Overlap Example
| Holding | Fund A (Large Cap) | Fund B (Large Cap) | Fund C (Flexi Cap) |
|---|---|---|---|
| HDFC Bank | 8.5% weight | 9.1% weight | 7.8% weight |
| Reliance Industries | 7.2% weight | 6.9% weight | 8.3% weight |
| Infosys | 6.8% weight | 7.5% weight | 6.1% weight |
| TCS | 5.5% weight | 5.9% weight | 5.0% weight |
In this illustrative example (not based on any specific fund), the same four companies dominate all three funds. You effectively own ₹3 of the same stocks for every ₹1 you think you are spreading.
How Portfolio Overlap Undermines Your Returns
When your 'diversified' portfolio is actually concentrated, a fall in a few large-cap stocks drags down your entire portfolio simultaneously. You also miss the benefit of genuine exposure to different market segments. Additionally, each fund charges a BER — paying three expense ratios for essentially the same stocks is an unnecessary cost drag on your returns.
How to Fix Portfolio Overlap
First, identify your true diversification by checking AMFI's monthly portfolio disclosures. Second, if you hold multiple large-cap funds, consolidate into one — you do not need three funds tracking similar stocks. Third, introduce genuine diversification: a mid-cap index fund, an international fund, or a debt fund adds real variety. Inbest offers free portfolio overlap reviews for clients in Kolkata, Jaipur, and Bengaluru.
Disclaimer
Mutual fund investments are subject to market risks. Please read all scheme-related documents carefully before investing. Past performance is not indicative of future results.
Baid Inbest LLP is an AMFI-registered Mutual Fund Distributor. ARN: 86114. This content is for educational purposes only and does not constitute personalised investment advice.
Want a free portfolio overlap analysis? Inbest advisors will review your holdings and suggest a leaner, more efficient portfolio — visit www.inbestnow.com or call +91 99039 21999.
