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Mutual fund overlap occurs when two or more funds in your portfolio hold the same stocks. For example, if your Large Cap fund and Flexi Cap fund both hold HDFC Bank at 9% each, you have significant overlap. High overlap means you're paying two expense ratios for essentially the same exposure, reducing true diversification. Ideally, each fund you own should contribute unique stocks to your portfolio.

OverlapIQ uses the standard minimum-weight methodology. For each stock held in common between two funds, we take the minimum of the two portfolio weights and sum them. For example, if Fund A holds Infosys at 7% and Fund B holds it at 5%, Infosys contributes 5% to their overlap score. A result of 60%+ indicates very high overlap — these funds are largely investing in the same companies.

Most financial advisors recommend holding 3 to 5 mutual funds for adequate diversification without excessive overlap. A common portfolio might include one Large Cap or Index fund, one Mid/Small Cap fund, and one Flexi Cap or ELSS fund. Beyond 5-6 funds, especially within the same category, the incremental diversification benefit drops sharply while overlap increases. Use OverlapIQ to verify your specific combination.

Large Cap funds typically have the highest overlap with each other — since they all invest in the same top 100 companies by market cap, their portfolios naturally converge. Two Large Cap funds often share 60-80% of holdings. Flexi Cap funds also tend to have significant overlap with Large Caps since fund managers often allocate 50-70% to large cap stocks. In contrast, Small Cap and Sectoral/Thematic funds have much lower overlap with other categories.

Generally, yes — holding two Large Cap funds provides limited additional diversification. Since both invest in the same universe of top 100 stocks, their portfolios will largely mirror each other (typically 50-75% overlap). You end up paying two expense ratios for nearly identical exposure. Instead, combine a Large Cap fund with a Mid Cap, Small Cap, or Index fund for broader market coverage. Check your specific pair on OverlapIQ to see the exact overlap.

Three strategies: First, diversify across categories — combine Large Cap, Mid Cap, Small Cap, and Sectoral funds instead of multiple funds in the same category. Second, consolidate similar funds — if two funds overlap by more than 50%, consider keeping the better performer and redirecting SIPs. Third, mix active and passive — pair an Index fund (for broad market exposure) with an active Mid/Small Cap fund (for alpha generation). Always check overlap using OverlapIQ before adding a new fund.

OverlapIQ uses SEBI-mandated monthly portfolio disclosures published by each Asset Management Company (AMC). Under SEBI regulations, all mutual fund houses must publish their complete portfolio holdings every month. We aggregate this data across 130+ equity mutual fund schemes from 25+ AMCs including HDFC, ICICI Prudential, SBI, Axis, Kotak, Nippon India, Mirae Asset, DSP, Tata, and more. Data is refreshed automatically on the 10th of each month.

Yes, completely free. No signup, no login, no hidden charges. Compare up to 10 mutual fund schemes instantly. Save funds to your watchlist for ongoing tracking. Share your watchlist with others via a simple link. OverlapIQ is built as a public utility for Indian mutual fund investors.

Yes. OverlapIQ includes 12 Indian-domiciled international funds (Nasdaq-100, S&P 500, NYSE FANG+, Hang Seng TECH, Japan, Taiwan and global funds) and 69 international ETFs (VOO, VTI, QQQ, SCHD, VGT, XLK, SMH, INDA, EEM, CSPX, SWDA, VWRA and more). Each uses the latest disclosed top holdings, dated per fund, so the overlap shown is a minimum. Most Indian international funds are closed to fresh investment because of the USD 7 billion industry cap; the International Investing Hub explains what is open and the other ways in.