SEBI just said the quiet part out loud.
For years, India’s mutual fund industry had a problem it preferred not to advertise. Your “Infrastructure” fund and your “Consumption” fund were holding largely the same stocks. Your “EV and Energy Transition” fund and your “Manufacturing Renaissance” fund were financial twins wearing different hats. You paid a thematic premium. You got a repackaged large-cap fund dressed up in a fancier brochure.
The industry had a name for this practice: closet indexing. SEBI’s February 26, 2026 circular finally called it out — and put rules in place to fix it.
Here is what changed, why it matters, and what every investor with thematic funds in their portfolio should do right now.
What Is Closet Indexing and Why Did It Happen?
Closet indexing is when a mutual fund claims to follow a specific strategy or theme but actually holds a portfolio that closely resembles a broad market index or another fund from the same fund house. The fund manager collects an active management fee for what is, in practice, passive-leaning exposure.
In the Indian mutual fund context, this showed up most prominently in thematic and sectoral funds. An AMC could launch an “Infrastructure” fund, a “Consumption” fund, a “PSU Opportunities” fund, and a “Capital Goods” fund — all under different labels. But when you opened the factsheets, the top holdings across all four would look remarkably familiar. The same large Nifty industrials, energy companies, and financial conglomerates appearing in different proportions, with different marketing narratives.
This happened for a straightforward reason. Fund houses had a commercial incentive to launch new products because each new fund generates fresh subscription flows. Categorisation rules introduced in 2017 brought some structure, but the thematic and sectoral space remained loosely defined enough that creative product design was still possible.
The result: many investors who believed they were diversifying across multiple themes were, in reality, concentrating risk in a handful of large Indian companies — paying for multiple fund managers to make essentially the same call.
What the February 26, 2026 Circular Changes
SEBI’s new circular on categorisation and rationalisation of mutual fund schemes — circular reference HO/24/13/15(2)2026-IMD-RAC4/I/5764/2026 — supersedes Clause 2.6 of the Master Circular for Mutual Funds dated June 27, 2024. It introduces several structural reforms, but the most significant for investors holding thematic and sectoral funds are the portfolio overlap limits.
Here are the key changes:
- Sectoral and thematic equity funds can no longer have more than 50% portfolio overlap with other equity schemes from the same AMC, with the exception of large-cap schemes.
- Overlap will be calculated on a quarterly basis using daily portfolio values, and fund houses must publish monthly overlap disclosures on their websites.
- Existing schemes get a three-year phased compliance timeline — required to reduce excess overlap in tranches of 35% in year one, 35% in year two, and the remaining 30% in year three. Schemes that fail to comply after three years will be mandatorily merged.
- Fund names must match their category exactly. Words or phrases that emphasise only the return aspect of a scheme are now prohibited.
- Sectoral and thematic funds are now separated into two distinct categories, increasing the total number of equity scheme categories from 11 to 13.
- General compliance for most other category changes is required within six months of February 26, 2026.
What This Means for Your Portfolio
If you hold thematic or sectoral mutual funds, the single most useful thing you can do today is pull the latest factsheets of each fund and compare the top 10 holdings side by side.
If the same stocks stare back at you in slightly different order across your “different” thematic funds, you have achieved what is arguably the most expensive form of concentration risk in the market. Multiple expense ratios. One concentrated bet.
The three-year compliance glide path means your existing funds will change. Some may be merged. Some will restructure their portfolios significantly. In either case, your actual exposure to specific sectors may shift in ways you are not currently accounting for in your asset allocation.
This is the moment to review your mutual fund portfolio based not on past returns or category labels, but on what you actually own underneath.
A Structural Reset, Not a Revolution
It is worth noting that this 2026 overhaul is not the first time SEBI has stepped in to impose order on a drifting mutual fund landscape. The 2017 categorisation circular did the same thing for an earlier generation of overlapping, confusingly named schemes. The pattern is familiar: product categories expand, definitions blur gradually, and a regulatory reset becomes necessary.
This time the focus is specifically on the thematic and sectoral space, which grew rapidly through the NFO boom of 2021 to 2024. SEBI’s intervention is a corrective step — timely, necessary, and structurally sound.
For investors, the practical takeaway is unchanged across both 2017 and 2026: the label on a mutual fund has never been a reliable guide to what is inside it. The only reliable guide is looking at the actual portfolio — understanding what you own, why you own it, and whether it genuinely fits your financial plan.
Thirty Years of Creative Naming. One Circular to End It.
SEBI’s February 2026 circular is not drama. It is discipline. Markets evolve, product categories drift, and regulatory frameworks need periodic resets to match the reality on the ground. This is one of those resets.
At myMoneySage, portfolio overlap analysis has always been a standard part of how we review client portfolios — not because a regulator required disclosure, but because knowing what you actually own is the starting point of any serious wealth management conversation.
If you would like us to review your mutual fund holdings for category overlap and alignment with your financial goals, reach out for a consultation with our SEBI-registered advisers.
Disclaimer: Mutual Fund investments are subject to market risks. Please read all scheme-related documents carefully before investing. This article is for informational purposes only and does not constitute investment advice.