Lesson 17 of 50 for advisers · Overlap and look-through · 4 min read · Reviewed 13 Nov 2026
Take every stock both funds hold, keep the smaller of its two weights, and add them up. That is SEBI’s own method, by ISIN. Fund houses publish full portfolios monthly within 10 days of month-end, and from 2026 they also publish category-wise overlap monthly. A Value and a Contra fund from the same house may overlap at most 50%.
Every scheme publishes its full portfolio, with ISINs, as at the last day of each month. It goes on the fund house’s site and AMFI’s within 10 calendar days.
Overlap between two funds: for each stock both hold, take the smaller of the two weights, then add these up. SEBI uses this method.
From 2026 fund houses publish their schemes’ overlap every month. A Value fund and a Contra fund from one house may overlap at most 50%, as may a sectoral fund with the house’s other equity funds.
Market-cap bands are by full market value: the top 100 companies are large cap, 101 to 250 mid cap, and the rest small cap. AMFI updates the list every six months.
Key idea: Two funds in different categories can still hold mostly the same shares; overlap is how you show a client.
Try the short quiz on this page to check what stuck.
Every fortnight, within 5 calendar days, including yields.
One, except index funds and ETFs on different indices, fund of funds with different underlying schemes, and sectoral funds on different themes.
By 26 Aug 2026; sectoral and thematic funds have 3 years.
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