The categories

Before 2017 an Indian fund could be called almost anything and hold almost anything. Two schemes with near-identical names could hold entirely different portfolios, and one AMC could run a dozen equity schemes that overlapped almost completely.

SEBI's circular of 6 October 2017, Categorization and Rationalization of Mutual Fund Schemes, ended that. It is the reason the fund you are looking at has a category label, and the reason the label constrains what it may hold.

The two axes that come first

Before the categories, two older distinctions still matter.

By maturity. An open-ended scheme is "available for subscription and repurchase on a continuous basis", with no fixed maturity; SEBI notes that "the key feature of open-ended scheme is liquidity". A close-ended scheme has a fixed maturity, is open for subscription only at launch, and is traded on an exchange thereafter.

Almost everything an ordinary investor buys is open-ended. The distinction matters because a close-ended scheme's exchange price can differ from its NAV — there is no continuous redemption to hold the two together.

By objective. SEBI's older framing splits schemes into growth (mostly equities, capital appreciation over the medium to long term, "comparatively high risks"), income (fixed income securities, "less risky compared to equity schemes" but with limited capital appreciation), and balanced.

That framing survives inside the modern categories rather than beside them.

What the categorisation did

Three things, each of which changed how the industry looks.

It defined the categories. Equity, debt, hybrid, solution-oriented and other schemes, each divided into named categories with rules about what the scheme must hold to use the name.

It limited how many schemes an AMC may run. Broadly, one scheme per category — which is why a fund house cannot sell you five overlapping large cap funds any more. Index funds, ETFs, fund of funds and sector or thematic schemes are the exceptions.

It fixed the meaning of large, mid and small cap — which is the part that reaches furthest, because it is used well outside mutual funds.

Large, mid and small cap are ranks

The definitions are mechanical, and they are relative rather than absolute:

• Large cap: 1st to 100th company by full market capitalisation.
• Mid cap: 101st to 250th.
• Small cap: 251st onwards.

This is the same definition chapter 7 of the equity subject uses, and it carries the same two consequences.

Nothing is a large cap because of its size in rupees. It is a large cap because of where it ranks. A company can become a mid cap without falling in value, if others rise past it.

The list is republished twice a year, prepared by AMFI in consultation with SEBI and the exchanges. When a company crosses a boundary, funds bound to that band have to adjust — and the buying or selling that follows is not a judgement about the company.

Reading a category properly

A category tells you what a scheme is obliged to do. It does not tell you what it is trying to achieve, and confusing the two is the common error.

Three examples of pairs people treat as interchangeable:

Large cap and large and mid cap. The second must hold a substantial minimum in each of two bands. It will behave differently in a year when mid caps move and large caps do not, and that difference is structural rather than a manager's call.

Multi cap and flexi cap. They sound like synonyms and are not. One is obliged to spread across market cap bands; the other is free to sit wherever the manager wants. If you want a decision made for you, those are opposite products.

Sectoral or thematic and diversified. A sector fund is a concentrated bet you have chosen, not a diversified holding that happens to be doing well. SEBI's own material treats them as their own type for that reason.

The habit worth forming: read the category, then read what the scheme information document says the category requires. Two minutes, and it tells you what the fund must do when its manager's preference and its mandate disagree.

What no category can tell you

Whether the manager is any good. Whether the current portfolio is sensibly priced. Whether the scheme suits you.

The categorisation made funds comparable — before it, "compare like with like" was not even possible. Comparability is a precondition for judgement, not a substitute for it.

The point

SEBI's 2017 circular gave scheme names fixed meanings, limited an AMC to broadly one scheme per category, and defined large, mid and small cap as ranks — the top 100, the next 150, and everything below, republished twice a year. A category constrains what a fund must hold; it says nothing about whether it is worth holding.