Mutual Fund Overlap Checker India 2025-26 Check Stock Overlap Between Your Mutual Funds — Avoid Concentration Risk & Over-Diversification

Updated: 17 Jun 2026  |  Top 50 Indian MFs · 200+ stocks  |  SEBI-categorised portfolios  |  Concentration heatmap

📊 Why Check Mutual Fund Overlap?

Many investors hold 5–10 mutual funds thinking they’re diversified — but 90% of those funds may hold the same 15 Nifty 50 stocks. High overlap means you’re not actually diversified — you own the same stocks multiple times at different expense ratios. This tool checks portfolio overlap so you can trim redundant funds and invest meaningfully.

Step 1 — Select 2 or more funds to compare (up to 5)

Select 2–5 funds above to compare overlap

Understanding Mutual Fund Overlap in India — Portfolio Concentration & Diversification

India’s active large cap mutual funds are mandated by SEBI to invest 80%+ of their corpus in the top 100 stocks by market cap. This structural constraint means most large cap funds hold nearly identical portfolios — dominated by HDFC Bank, Reliance, ICICI Bank, Infosys, and TCS. Adding a second or third large cap fund doesn’t improve diversification; it just multiplies expense ratios on the same underlying exposure. Overlap analysis helps identify this duplication so you can streamline your portfolio.

✅ Low Overlap (<30%)

Funds are genuinely diversified

Different sectors/market caps

Keep both funds

Examples: Large cap + Small cap; India fund + US fund; Nifty 50 index + Midcap 150 index

⚠️ Medium Overlap (30–60%)

Some redundancy — review needed

Evaluate by expense ratio

Keep the better-performing fund

Examples: Two flexi-cap funds; Large cap + Multi cap; Same category, different AMCs

🚨 High Overlap (>60%)

Near-identical portfolios

Paying double/triple expense ratio

Merge into one fund

Examples: Two large cap funds; Two Nifty 50 index funds; ELSS + Large cap from same AMC

3 Real Mutual Fund Overlap Scenarios India 2025-26

1. Amit — Holds 3 Large Cap Funds — 72% Overlap (Massive Redundancy) 🚨

Portfolio: Mirae Asset Large Cap + HDFC Top 100 + Nippon India Large Cap. Monthly SIP: ₹5,000 each = ₹15,000 total.

All three funds are mandated to hold Nifty 100 stocks (SEBI large cap category). Result: ~72% overlap — they all hold HDFC Bank, ICICI Bank, Reliance, Infosys, TCS in similar proportions. Amit is paying 3 different expense ratios for virtually the same portfolio. Action: Consolidate into ONE large cap fund (lowest expense ratio or best 10-year track record) + use the freed ₹10,000 SIP for Mid cap or Small cap to achieve real diversification.

2. Priya — Large Cap Index + Mid Cap Fund — 18% Overlap (Ideal!) ✅

Portfolio: Nifty 50 Index Fund + Nippon India Mid Cap 150. Monthly SIP: ₹8,000 + ₹4,000.

Nifty 50 index holds only Nifty 50 stocks. Nippon Mid Cap 150 holds stocks ranked 101–250. Overlap: ~18% (some crossovers as companies move between categories). This is ideal diversification — completely different market cap segments. Priya gets: low-cost large cap exposure via index + mid cap growth potential. Total expense: 0.15% (index) + 0.8% (active mid cap) vs Amit’s 0.8%+0.8%+0.8% for the same exposure.

3. Rahul — ELSS + Flexi Cap — 55% Overlap (Review Needed) ⚠️

Portfolio: Mirae Asset ELSS Tax Saver + Parag Parikh Flexi Cap. Equal SIP ₹5,000 each.

ELSS funds invest 80%+ in equity (no category restriction post-SEBI 2017). Many ELSS funds behave like flexi-cap funds. Overlap: ~55% — significant. However, Rahul needs the ELSS for 80C tax saving — he can’t exit it. Action: (a) Check if Parag Parikh Flexi Cap’s non-overlapping 45% (international + mid cap + Indian small caps it holds) adds genuine diversification; (b) If yes — keep both; (c) If Parag Parikh mainly holds large Indian stocks like ELSS — redirect Flexi Cap SIP to a mid/small cap fund instead.

5 Expert Tips to Reduce MF Portfolio Overlap

01

3-Fund Portfolio Eliminates Most Overlap — Nifty 50 + Midcap 150 + Small Cap 250

The simplest diversified Indian portfolio with near-zero overlap: Nifty 50 Index Fund (top 50 stocks by market cap) + Nifty Midcap 150 Index Fund (ranks 101–250) + Nifty Smallcap 250 Index Fund (ranks 251–500). Combined exposure: top 500 Indian stocks with market-cap weighted allocation and minimal overlap between tiers. Total expense ratio: 0.1–0.3% across all three. Add an International Fund or Nasdaq 100 Fund for global diversification with zero India overlap.

02

Never Hold More Than 2 Funds From the Same SEBI Category

SEBI has defined 10 equity fund categories — all funds within a category have similar mandates (Large Cap funds must hold 80%+ in top 100 stocks). This structural similarity makes holding 2 large caps = 60–80% overlap guaranteed. Rule: maximum ONE fund per SEBI equity category. Diversification comes from combining different categories: Large Cap + Mid Cap + Small Cap + International + Sector/Thematic.

03

Index Funds Have Known, Controlled Overlap vs Active Funds

Active fund portfolios change every month — what you see today may differ by 20–30% in 6 months as fund managers reshuffle. Index funds have fixed, rule-based holdings (Nifty 50 = specific 50 stocks). This makes overlap calculation with index funds highly reliable. Mixed portfolio: use index funds as the stable “anchor” with known overlap, and use active funds selectively where manager skill genuinely adds value (typically Mid/Small cap categories where markets are less efficient).

04

Check Overlap After Every Portfolio Review (At Least Annually)

Mutual fund portfolios drift over time — a Small Cap fund that had low overlap with your Large Cap fund 3 years ago may have migrated to Mid/Large stocks as small caps grew. SEBI reclassification events (which happened in 2017 and again in 2023) dramatically changed fund categories and mandates. Run overlap check annually, especially after large market moves where fund managers may have repositioned. This tool helps identify new concentration before it affects your risk profile.

05

High Overlap + High Expense = Exit Signal — Prefer Lower Expense Fund

If two funds have 70%+ overlap, you should ideally hold only one. Choose based on: lower expense ratio (direct plan vs regular plan — difference is 0.5–1%/year, massive over 20 years); better 10-year SIP return track record; fund house reputation and fund manager stability; lower fund size for small/mid caps (large AUM hurts performance). When exiting an overlap fund with gains: check LTCG (12.5% on gains above ₹1.25L). Wait for 1-year mark to qualify for LTCG vs STCG (20%).

Frequently Asked Questions — Mutual Fund Overlap India

What is mutual fund overlap?+
Percentage of common stock holdings between two or more mutual funds. High overlap = paying multiple expense ratios for the same underlying stocks. SEBI's large cap mandate (80%+ in Nifty 100) makes large cap fund overlap structural — typically 65–85%.
What is a good overlap percentage?+
Below 30%: ✅ Keep both — genuinely diversified. 30–60%: ⚠️ Review — some redundancy; evaluate by expense ratio. Above 60%: 🚨 Consolidate — paying double expense ratio for same stocks.
Why do large cap funds have high overlap?+
SEBI mandates large cap funds to invest 80%+ in Nifty 100 stocks — all funds fish in the same 100-stock pond. The top 10 stocks (HDFC Bank, Reliance etc) dominate all large caps. Solution: hold max ONE large cap fund; add mid/small cap for real diversification.
How many mutual funds should I hold?+
3–5 funds is optimal. Example: Nifty 50 Index + Mid Cap Active + Small Cap Index + International Fund. Beyond 5: overlap risk rises, marginal diversification approaches zero. More funds ≠ more diversification.
What stocks are common in most Indian MFs?+
HDFC Bank, Reliance Industries, ICICI Bank, Infosys, TCS, Kotak Mahindra Bank, L&T, Bajaj Finance, Axis Bank, SBI. These 10 stocks appear in 80–90% of active equity funds. Any two large/flexi cap funds will massively overlap in these names.
Index fund overlap vs active fund overlap?+
Two index funds tracking same benchmark: 100% overlap — completely redundant. Index vs large cap active: 50–80% overlap. Index vs small cap active: 5–15%. Never hold two index funds with same benchmark — pick the cheapest one.
Parag Parikh Flexi Cap overlap with other funds?+
~20–25% international stocks (Alphabet, Microsoft etc) = 0% overlap with domestic Indian funds. Total overlap with domestic flexi caps: ~30–40% (lower than domestic-only pairs). Good natural diversifier alongside Indian equity funds.
ELSS and large cap fund overlap?+
Modern ELSS = de facto flexi cap (no SEBI market cap restriction). Overlap with large cap funds: 45–70%. Since you need ELSS for 80C: treat it as your large/flexi cap allocation, add mid/small cap separately.
Mid cap vs small cap fund overlap?+
0–5% overlap by design (different SEBI market cap ranges). Mid cap + Small cap is excellent diversification combination alongside large cap — covers the full Indian equity market with minimal overlap.
When should I exit a high-overlap fund?+
Overlap >60% + higher expense ratio = exit. Tax: wait 12 months for LTCG rate (12.5%) vs STCG (20%). Plan exits to stay within ₹1.25L annual LTCG exemption. Redirect to non-overlapping category.
Nifty 50 vs Sensex index funds — which to choose?+
~60% overlap (Sensex 30 stocks are all within Nifty 50). Never hold both. Choose Nifty 50 (broader, 50 stocks) over Sensex. Within Nifty 50 index funds: choose lowest expense ratio (SBI/UTI/ICICI/Nippon all equivalent).
Is 5–6 mutual funds too many?+
Depends on overlap. 5 funds with different categories (Large + Mid + Small + International + ELSS): 30–35% overlap — fine. 5 large cap funds: 70–80% overlap — not diversified. Check overlap first.
How to reduce mutual fund portfolio overlap?+
Check overlap → exit higher expense fund in each overlapping pair → reinvest in different category → aim for max 1 fund per SEBI category → review annually. 3-fund portfolio (Nifty 50 + Midcap + Smallcap) eliminates most overlap.
Direct vs regular plan — does it affect overlap?+
Same portfolio — 100% overlap between direct and regular plan of same fund. Only difference: expense ratio (direct 0.3–1.5% lower). If holding two overlapping funds: always choose DIRECT PLAN of the one you keep. Expense saving compounds significantly over 10–20 years.
Nifty 500 as single fund to eliminate overlap?+
Yes — Nifty 500 Index Fund covers top 500 Indian stocks (Large + Mid + Small) in one fund at 0.15–0.25% expense ratio. Best solution for investors who want zero overlap concerns. Add International Fund for global exposure.
Nifty 50 vs Nifty Next 50 overlap?+
Zero overlap — Nifty 50 (ranks 1–50) + Nifty Next 50 (ranks 51–100) are non-overlapping by design. Excellent combination covering the full Nifty 100 universe at low cost.
How often should I check MF overlap?+
Annually at minimum. Also check: before adding any new fund; after SEBI category changes; after large market moves (fund managers reposition). Active fund portfolios change monthly — AMFI publishes new data by 10th of each month.
What is the AMFI portfolio disclosure rule?+
AMFI mandates complete portfolio disclosure within 10 working days of each month end. Available at amfiindia.com and individual AMC websites. All overlap tools use these AMFI-published portfolios as the authoritative data source.
Can I use this tool for ETFs?+
Yes — ETFs track the same indices as their equivalent index funds. Nifty 50 ETF = Nifty 50 Index Fund = 100% overlap. For ETF vs active fund overlap: select the corresponding index fund category in this tool.
How is mutual fund overlap calculated?+
Overlap % = Common stocks ÷ Total unique stocks across both funds × 100. Weighted overlap: sum minimum weight of each common stock in both funds. This tool uses stock-count overlap for simplicity. For weighted overlap: use Kuvera or Value Research for account-specific data.
What is true portfolio diversification in MF?+
Low correlation between holdings — they don't all rise/fall together. Across: market caps (Large+Mid+Small), geographies (India+International), asset classes (Equity+Debt+Gold). 10 large cap funds ≠ diversification. Large cap + Small cap + International = genuine diversification.

Disclaimer — Mutual Fund Overlap Checker (CalcWise Finance)

Portfolio holdings shown are based on publicly disclosed AMFI data (approximate/representative). Actual holdings change monthly — verify current portfolios on amfiindia.com or individual AMC websites before making investment decisions. Past overlap is not indicative of future portfolio similarity. Mutual fund investments are subject to market risks.

Regulatory authorities: Mutual funds in India are regulated by SEBI — sebi.gov.in. AMFI-registered funds list and portfolio data: AMFI India — amfiindia.com. Investor grievance: SEBI SCORES — scores.sebi.gov.in. Last Updated: 17 Jun 2026.