Key takeaways
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True diversification means spreading across assets that move differently✓
Owning 5 large-cap funds is NOT diversified — they hold the same stocks✓
Fund overlap is the most common silent mistake in Indian retail portfolios✓
A 2–3 fund portfolio usually outperforms a 10-fund overlapping portfolio✓
Real diversification: equity + debt + optionally gold or international👨💼
SureshAge 40·CA, Ahmedabad
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I have 8 mutual funds. I'm well diversified.
Suresh holds: HDFC Top 100, Axis Bluechip, Kotak Equity Opportunities, Mirae Asset Large Cap, SBI Bluechip, Nippon Large Cap, ICICI Pru Large & Midcap, HDFC Flexi Cap. When the market fell 15% in 2022, all 8 funds fell roughly 15%. His 'diversification' provided zero protection.
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The overlap problem — illustrated
The top 5 holdings of most large-cap funds in India are almost identical:
1. Reliance Industries
2. HDFC Bank
3. ICICI Bank
4. Infosys
5. TCS
These 5 stocks make up 35–40% of the Nifty 50 — and 35–40% of most large-cap active funds. Owning 5 large-cap funds means owning these stocks 5 times over. When they fall together, every fund falls together.
Fund overlap check — sample portfolio
What real diversification actually protects against
Diversification protects against specific risk — when any single company, sector, or country does badly.
It does NOT protect against market risk — when everything falls in a global recession, diversified portfolios also fall.
But specific risk is the real danger for most investors. If you own only Infosys and it faces a scandal, you lose everything. If Infosys is 2% of a 50-stock fund, you barely notice.
Suresh's old portfolio vs a simple 3-fund portfolio
8 overlapping funds (old)
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8 funds, all large-cap equity✓
Same ~50 stocks owned 6–7 times✓
Multiple fund manager fees for no benefit✓
False sense of security✓
Falls 15% when Nifty falls 15% — no cushion3-fund portfolio (better)
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Nifty 500 index fund: 70% (broad equity)✓
Short-duration debt fund: 20% (stability)✓
Gold fund: 10% (crisis insurance)✓
Genuinely different assets, different behaviours✓
Equity falls 15%, but debt and gold partially offset✅
How to check your own fund overlap
Go to valueresearchonline.com → Portfolio → Overlap.
Enter any two funds. It shows the percentage of holdings they share.
Rule of thumb:
• Above 60% overlap: eliminate one fund
• 40–60%: acceptable if they serve different goals
• Below 40%: genuinely different funds
If two funds have >60% overlap, you are paying double expense ratios for one effectively strategy.
⚠Educational content only. Numbers shown are illustrative — actual returns vary. This is not investment advice. Consult a SEBI-registered financial advisor before investing.
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