a mutual fund portfolio with multiple schemes often creates the appearance of diversification. different names. different fund houses. different categories. the assumption is that this spreads risk.
the assumption is often wrong.
mutual fund overlap occurs when two or more schemes hold the same stocks or securities . the portfolio looks diversified on the surface. but underneath, it is concentrated in a narrow set of holdings.
an overlap of less than 25% is generally considered healthy. lower is better . if the overlap exceeds 40%, the diversification benefit is significantly reduced .
what overlap actually means
a flexi-cap fund and a focused fund from the same amc had a 71% overlap in holdings . one fund had 59 stocks. the other had 33. their top positions were almost identical. the investor held two funds. but the portfolio acted like one.
even across different amcs, high overlap persists. among 40 flexi-cap schemes, two funds can easily have a 50-60% overlap . without checking, the investor would not know.
the problem is not just in the number of common stocks. it is also in the weight percentage. two funds may hold the same stock at similar weights. that magnifies the risk.
the real cost of high overlap
reduced diversification. the primary purpose of investing across multiple funds is to spread risk. when schemes have overlapping holdings, that benefit is weakened . the investor believes the risk is spread. but the portfolio has overexposure to a small set of companies.
concentration risk. if those overlapping stocks underperform, the entire portfolio takes a hit . a single sector downturn affects every fund simultaneously. the investor is not protected.
redundant exposure. holding multiple funds with similar portfolios adds little incremental value. but it increases overall portfolio costs. the investor pays multiple expense ratios for nearly identical outcomes .
operational complexity. managing overlapping funds is harder. rebalancing becomes complicated. tax planning is more difficult. the investor is doing more work for no additional benefit.
how to check overlap
top holdings comparison. the top 10 holdings of a mutual fund provide a quick snapshot . if a stock appears in the top holdings of two funds, that is a clear sign of overlap.
factsheets. amcs publish monthly factsheets. these list the top holdings and sector allocations of each scheme . cross-referencing these across different funds is the simplest way to check for common stocks.
portfolio disclosures. full portfolio holdings are available on amc websites . these allow a deeper check, including the weight of each stock in the portfolio.
online overlap tools. multiple platforms offer portfolio overlap tools . rupeezys mf lab, advisorkhoj, fundoo, and morningstar india are among the options . these tools show common holdings and overlap percentage between two funds instantly .
strategies to reduce overlap
limit funds per category. holding three large-cap funds is not diversification. it is repetition. one or two funds per category is generally sufficient.
diversify across categories. large cap, mid cap, small cap, and multi-cap funds invest in different market segments. the holdings overlap less than within the same category.
choose distinct investment styles. a value fund and a growth fund are less likely to hold the same stocks. a flexi-cap fund and a sectoral fund serve different purposes.
avoid multiple index funds. index funds tracking the same benchmark have identical holdings . two nifty 50 index funds are the same fund in a different wrapper.
periodic review. mutual funds churn their portfolios . overlap is not a one-time check. it needs to be reviewed at least annually.
frequently asked questions
1. what is mutual fund overlap?
mutual fund overlap is when different schemes in a portfolio hold the same underlying securities . this creates duplication and reduces the benefit of diversification.
2. how much overlap is acceptable?
an overlap of less than 25% is considered healthy. 25-40% is moderate. above 40% significantly reduces the diversification benefit .
3. does overlap matter if the funds are from different amcs?
yes. even across amcs, fund managers often invest in the same set of popular stocks . the overlap can be 50-60% between schemes from different fund houses.
4. can overlap be checked without paid tools?
yes. fund factsheets and portfolio disclosures are available free on amc websites . comparing top holdings across schemes is a simple manual check.
5. is overlap in debt funds also a problem?
yes. particularly in corporate bond funds with similar issuer holdings . the same securities can appear across multiple debt funds, creating similar risks.
