NISM-Series-XV: Research Analyst · Introduction to Research Analyst Profession

Buy-Side vs Sell-Side Research: Key Differences for NISM

Updated 11 October 2026 · Fact-checked

Buy-side research is produced in-house for institutions that invest money, such as mutual funds, and is used only by that firm. Sell-side research is produced by brokerages and shared with many clients to support trading and other services. Buy-side serves the portfolio. Sell-side serves the client base and the brokerage's revenue.

Understand Buy-Side vs Sell-Side Research

Start with one question: who will use the research, and who pays for it? The answer decides whether it is buy-side or sell-side.

Buy-side firms buy securities to manage money. Examples are mutual funds, insurance companies, pension funds, portfolio managers and alternative investment funds. Their analysts write research for their own fund managers. The output is usually private. It is not sold or published. Its test is simple: does it help the portfolio earn better returns?

Sell-side firms sell services. Examples are brokerages and investment banks. Their analysts publish reports on companies and sectors, often with a rating and a target price. The reports go to many clients, such as institutions and retail investors. The research supports trading commissions and relationships with clients. It is often a cost the firm recovers through broking income.

Because of this, the two face different pressures. A buy-side analyst answers to the fund manager and is judged by portfolio results. A sell-side analyst answers to clients and the firm and is judged by the quality of calls, client feedback and service. Sell-side research can face conflicts of interest, for example when the same firm earns investment banking fees from the company being covered. Rules on disclosure and independence exist to manage this.

In India, SEBI regulates research analysts under the SEBI (Research Analysts) Regulations, 2014. An independent research analyst is one who is registered and not tied to a broker's or fund's in-house team, and who is paid by clients or sells subscriptions. Do not confuse this with buy-side. Independent analysts publish for clients, so their reports are closer to sell-side in form, but they are not part of a brokerage.

Key formulas to remember

Buy-side: Buy-side = research for own investment decisions; internal; no public distribution; Users: mutual funds, insurers, pension funds, PMS, AIFs.
Sell-side: Sell-side = research published for many clients; supports broking and other services; Producers: brokerages and investment banks. Usually carries a rating and target price.
Key test: Who uses it? Who pays? Is it distributed?; Internal and private points to buy-side. Distributed to clients points to sell-side.
Main risk of sell-side: Conflict of interest = research vs. banking or broking revenue; Needs disclosure of interest and independence from other business lines.

How to solve Buy-Side vs Sell-Side Research questions

Use the same short method for any question that asks you to classify research or compare the two sides.

1Read the question and find the producer: a fund house, insurer or portfolio manager, or a brokerage or bank.
2Ask who reads the research: only the firm's own fund managers, or many outside clients.
3Ask what the research supports: portfolio decisions, or client service, trading and fee income.
4Match: own portfolio and private means buy-side. Client distribution means sell-side.
5Check for a conflict-of-interest angle. If the question mentions banking fees or broking commissions, think sell-side.
6Remove options that use absolute words like only, always or never unless the fact truly supports them.
7Pick the option that fits all the facts, not just one.

Quickest way: Three-word shortcut: Own, Client, Conflict

When to use it: Use it for any one-line classification or comparison MCQ when time is short.

Own: research used for the firm's own money means buy-side.
Client: research sent to outside clients means sell-side.
Conflict: pressure from banking or broking revenue means sell-side.
Pick the option that matches, and skip options that swap the two sides.

Common mistakes in Buy-Side vs Sell-Side Research

Thinking buy-side means the analyst buys research from brokers.
The word 'buy' sounds like purchasing reports.
Fix: Buy-side firms buy securities for investment. Their analysts work inside that firm.
Calling a mutual fund's in-house research sell-side.
Mutual funds sell units to investors, so students link them to selling.
Fix: Classify by how the research is used. A fund's own research guides its portfolio, so it is buy-side.
Assuming independent research analysts are buy-side.
Both are separate from a brokerage's research desk.
Fix: An independent analyst publishes reports for clients and is SEBI-registered. It is not an in-house team of an investing firm.
Saying sell-side research is always free of bias.
Published reports look formal and objective.
Fix: Sell-side can face conflicts of interest. Disclosure and independence rules exist to handle this.
Mixing up what each side is judged on.
Both write about the same companies.
Fix: Buy-side is judged on portfolio performance. Sell-side is judged on the quality of calls, client service and the firm's revenue goals.

Worked examples

Example 1

An analyst at an asset management company writes a detailed company note used only by the fund managers of that company. It is not shared outside. Which type of research is this?
A) Sell-side research
B) Buy-side research
C) Retail broker research
D) Rating agency research

Show the solution

Producer: an asset management company. It invests money for investors.
Users: only its own fund managers.
Distribution: private, not shared.
Own use and no distribution point to buy-side.

Answer: B) Buy-side research

Example 2

Which feature is most typical of sell-side research?
A) It is kept strictly internal to the investing firm
B) It is judged only by the portfolio's returns
C) It is published to many clients and may face conflicts of interest
D) It is written only by pension fund employees

Show the solution

Option A describes buy-side, so reject it.
Option B describes how buy-side is judged, so reject it.
Option D names a buy-side employer, so reject it.
Option C matches client distribution and the conflict risk from broking or banking links.

Answer: C) It is published to many clients and may face conflicts of interest

Exam tips

Classify by use and distribution, not by the firm's name. Fund houses sell units but their research is buy-side.
Expect questions that give a scenario and ask you to name the side. Look for who the readers are.
Link sell-side with conflicts of interest and disclosure. Link buy-side with portfolio decisions.
Do not guess when unsure. NISM-Series-XV has negative marking of 25% of the marks for a question.

Practice questions from Introduction to Research Analyst Profession

Buy-Side vs Sell-Side Research: frequently asked questions

What is the main difference between buy-side and sell-side research?

Buy-side research is created for an investing firm's own portfolio and stays internal. Sell-side research is produced by brokerages and distributed to clients. The difference lies in who uses it and why it is produced.

Is a mutual fund analyst buy-side or sell-side?

A mutual fund analyst is buy-side. The research guides the fund's own investment decisions. It is not meant for sale or wide circulation.

Where does an independent research analyst fit in India?

An independent research analyst is not part of a brokerage desk or an investing firm's team. The analyst is SEBI-registered under the Research Analysts Regulations, 2014 and publishes research for clients. In form it is closer to sell-side, but it is a separate category.

Why is conflict of interest a bigger issue for sell-side research?

Sell-side firms often earn broking or investment banking income. This can pressure analysts to favour certain companies or ratings. Disclosure and independence requirements help manage it.