What a mutual fund is
Money pooled from many people, invested by a manager, and owned as units. The part worth knowing is the structure around it — a trust, a sponsor, trustees, a manager and a custodian, none of whom is the same entity.
Chapter 1 · Beginner
A mutual fund is the simplest idea in this course and the one with the most machinery behind it. The idea takes a paragraph. The machinery is why your money is still there.
The idea
SEBI's definition, read on 30 September 2026:
Mutual fund is a mechanism for pooling money by issuing units to the investors and investing investors funds in securities in accordance with objectives as disclosed in offer document.
Many people put money in. The fund issues each of them units in proportion to what they put in. The pooled money buys securities. Profits and losses are shared in proportion to holdings, and the people who hold units are unitholders.
Three consequences follow immediately.
You own units, not shares. A unit is a claim on a slice of the whole portfolio. You cannot ask for your share of one particular holding, any more than a shareholder can ask for their share of the factory.
Diversification comes free. SEBI's own description notes that spreading investments across industries and sectors diversifies risk "because all stocks may not move in the same direction in the same proportion at the same time". A person with ₹5,000 cannot build a hundred-stock portfolio. A fund can, and sells them a slice of it.
Someone else decides. The objective is disclosed in the offer document and the manager operates inside it, but within that mandate the choices are not yours. You are buying a process, not a portfolio you control.
The structure, and why it has four parts
This is the part worth learning properly, because it is the answer to the question people are really asking when they ask whether mutual funds are safe.
A mutual fund in India is set up as a trust. SEBI:
A mutual fund is set up in the form of a trust, which has sponsor, trustees, Asset Management Company (AMC) and custodian.
The sponsor establishes the trust — "like promoter of a company", in SEBI's words.
The trustees hold the fund's property "for the benefit of the unitholders". They are not the manager. They supervise the manager, and SEBI gives them "the general power of supervision and direction over AMC".
The asset management company is the entity whose brand you recognise. It makes the investment decisions, and it is approved by SEBI.
The custodian, registered with SEBI, actually holds the securities.
Read that list again with one question in mind: who holds the assets? Not the AMC. The custodian holds the securities, and the trustees hold the property of the trust for you. The company whose advertisement you saw manages the money without holding it.
That separation is the same principle as chapter 3 of the markets subject, where your broker takes orders and a depository holds your shares. It is deliberate, and it is the reason an AMC getting into trouble is not the same event as your money disappearing.
The independence requirements
SEBI puts numbers on the supervision:
at least two-thirds of the directors of trustee company should be independent and should not be associated with the sponsors in any manner
and
fifty per cent of the directors in the board of AMC should be independent
Two-thirds of the supervising board must be independent of the sponsor. Half of the manager's board must be independent. These are structural answers to a structural problem: the sponsor has an interest in the AMC earning fees, and the unitholders have an interest in the portfolio.
Every mutual fund must be registered with SEBI before it can collect a rupee from the public, and SEBI is explicit that public sector, private sector and foreign-promoted funds are "governed by the same set of Regulations" with "no distinction in regulatory requirements".
What this does not protect you from
The structure protects you from the fund company failing, from the securities being misappropriated, and from the manager operating outside the mandate.
It does not protect you from the mandate being a bad idea, the manager being wrong, or the market falling. A well-regulated equity fund holding equities will fall when equities fall, exactly as it is supposed to. Nothing in the trust structure is a floor under the value of what it holds.
A note on scale
UTI was the first mutual fund in India, set up in 1963. SEBI notified mutual fund regulations in 1993 and revised them fully in 1996, after which private sector funds entered. Almost every rule in this subject is younger than the industry it governs, and most of them exist because something went wrong first.
The point
A mutual fund pools money and issues units, so you own a slice of a whole portfolio rather than any security in it. It is a trust: the sponsor sets it up, the trustees hold the property for you, the AMC manages it and a custodian holds the securities. The company you have heard of is the one that does not hold your assets.
Check yourself
4 questions. Every answer is explained afterwards, including the ones you get right — guessing correctly is not the same as knowing. Score 70% or more and the chapter is marked done.
Question 1 of 4
0 of 4 answered. You can submit with questions unanswered — they simply score zero.
Now do it with your own numbers
For any fund you hold, find the four names: the sponsor, the trustee company, the asset management company and the custodian. They are in the scheme information document, and most investors know only the second word of the fund's brand name.
The AMC is the name on the marketing. The trustee company is usually a separate company with a similar name, and the custodian is a bank.