The core problem
If you hold four “different” flexi cap funds from four different AMCs, how different are they really? Often, less than you’d think — but rarely as identical as headlines suggest either. The honest answer requires actually comparing portfolios, not assuming category labels tell you enough.
INSIGHT Why this matters. Every extra fund with high overlap to what you already own adds a second expense ratio, a second exit-load clock, and extra tax-lot bookkeeping — for a diversification benefit that’s mostly illusory. The stocks aren’t more diversified just because the fund names are different.
How much overlap is normal?
We measured actual portfolio overlap — the share of holdings two funds have in common, weighted by how much of each fund’s money sits in those names — across large, well-known funds within the same category and across categories.
Two funds in the same category — from different AMCs — typically share about a third of their portfolio. Funds from different categories still often share some large, liquid names, but the overlap drops sharply. In our sample of well-known large-AMC funds compared this way, no pair crossed 70% overlap — and roughly 1 in 6 pairs cross the 50% mark. Worth a second look, but not the norm. (Same-AMC pairs across categories are a different, hotter comparison — see the scale below.)
It depends heavily on the category
Overlap isn’t a single number — it varies a lot by what the funds are allowed to hold. Large Cap funds pick from a narrow universe of roughly 100 large, liquid names, so convergence is structural. Small Cap funds work from the widest universe and the least liquid names, so managers land on very different portfolios.
CHART
Typical same-category overlap by SEBI category
Large Cap funds converge the most; Small Cap funds diverge the most. Weighted holdings overlap, median across pairs.
| CATEGORY | TYPICAL OVERLAP | WHY |
|---|---|---|
| Large Cap | ~56% | Narrow universe — funds mostly pick from the same ~100 large, liquid names |
| ELSS (Tax Saver) | ~37% | Similar large/flexi-cap style but with a lock-in — moderate convergence |
| Flexi Cap | ~33% | Wide mandate across market caps gives managers more room to differ |
| Large & Mid Cap | ~31% | Split mandate — large-cap sleeve converges, mid-cap sleeve diverges |
| Mid Cap | ~24% | Larger stock universe, more room for genuine stock-picking differences |
| Small Cap | ~14% | Largest universe, least liquid — managers land on very different names |
INSIGHT Takeaway. Holding two Large Cap funds gives you far less real diversification than holding two Small Cap funds. If you’re going to double up anywhere, small/mid cap doubling is less redundant than large cap doubling.
The “closet Large Cap” problem
Flexi Cap funds are marketed on flexibility — the mandate lets a manager invest anywhere across the market-cap spectrum. In practice, many don’t use it. In our sample, Flexi Cap funds overlapped with Large Cap funds at roughly 38% — nearly triple their overlap with a genuinely different category like Small Cap (about 6%), and even higher than Flexi Cap funds’ overlap with each other (33%).
CHART
Flexi Cap funds overlap more with Large Cap than with each other
Weighted overlap of Flexi Cap funds against other categories. Many Flexi Cap funds are, in practice, closet large-cap.
WARNING What this means for you. A Flexi Cap fund’s name doesn’t guarantee genuine multi-cap exposure. If you’re holding a Flexi Cap fund specifically to get small/mid-cap access alongside a Large Cap fund, check the actual market-cap breakdown in the factsheet — you may be paying an active-fund fee for what’s substantially a large-cap portfolio.
The real duplicate scale for retail investors
A threshold framework that holds regardless of why two funds overlap — same category from different AMCs, or same AMC across categories:
| OVERLAP RANGE | WHAT IT MEANS | ACTUAL IMPACT | RECOMMENDED ACTION |
|---|---|---|---|
| 0–30% | Distinct funds | True diversification | Keep both |
| 30–50% | Moderate overlap | Normal for same-category pairs; redundant for cross-category pairs | Review — stop adding new capital, pick one to direct future SIPs |
| 50–70% | Effective duplicates | Highly overlapping risk, major stock duplication | Consolidate — treat as duplicates, exit the weaker/costlier option |
| 70%+ | Near-identical portfolios | Virtual carbon copy (closet index, or one fund shadowing another) | Exit immediately — switch to the lower-cost option |
A cross-AMC, same-category pair rarely lands above 50% in our sample (see above). A same-AMC pair across categories — what the Fund Overlap Monitor tracks monthly — can land anywhere on this scale, including well past 70%, when a fund house runs near-identical mandates under different labels (an ELSS shadowing a Flexi Cap, say). The scale and the action it recommends don’t change; only which comparison you’re looking at does.
That 50% line isn’t arbitrary on our end either — SEBI’s March 2026 Master Circular for Mutual Funds requires sectoral and thematic schemes from the same AMC (large-cap funds excluded) to keep portfolio overlap with each other under 50%. Our “Effective Duplicates” band starts exactly where the regulator’s own tolerance ends.
What overlap numbers don’t tell you
- Overlap ≠ correlation. Two funds can have low stock overlap but still move together if they’re both heavy in the same sector via different stocks.
- Weight matters more than count. Sharing 15 small positions (2% each) is very different from sharing 3 stocks that are each 8% of both portfolios.
- Point-in-time only. Portfolios are disclosed monthly and change. A snapshot from six months ago may not reflect today’s overlap, especially after a fund manager change.
- Category labels can mislead. Two funds in the same SEBI category can still run very different actual strategies — overlap is a better signal than the label alone.
Before you add another fund: a checklist
- Check overlap against what you already hold — not just against a benchmark index, but against your actual existing funds.
- Weight by category. 40% overlap in Small Cap is a bigger deal than 40% overlap in Large Cap — the baseline is different.
- Look at the top 10 holdings specifically. If the same 6–7 names dominate both portfolios, category diversity on paper won’t save you from concentrated single-stock risk.
- Re-check after manager changes. A new fund manager can shift a portfolio’s style meaningfully within a couple of quarters — old overlap numbers go stale fast.
- Ask what the new fund actually adds. If overlap is high, the honest question isn’t “is this a bad fund” — it’s “am I diversifying, or just duplicating with extra cost?”
The bigger picture
None of this means concentration is automatically wrong, or that active management doesn’t work — plenty of active equity funds do outperform their benchmarks over multi-year periods, and a well-chosen concentrated portfolio can be a deliberate, informed choice. The point of checking overlap isn’t to force artificial diversification — it’s to make sure that when you think you’re diversifying, you actually are.
METHODOLOGY Weighted holdings overlap = Σ min(weight_A, weight_B) across common stock holdings, using the latest disclosed month-end portfolio from AMFI scheme disclosures. Cash, derivatives, and non-equity instruments are excluded. Category-level figures are medians across pairwise comparisons of large, well-known funds within each SEBI category. Point-in-time snapshot — portfolios change monthly.
Data: AMFI public disclosures. Analysis: Punji Research. Not investment advice.
Want the current numbers instead of category medians? See the Fund Overlap Monitor for live methodology and every monthly breakdown.