Buy Side vs. Sell Side: Analysts, Firms, and the Rules That Separate Them

The sell side is the part of the financial industry that sells, trades and underwrites securities for clients: broker-dealers, many of which also run investment banking. The buy side is the part that buys securities for its own accounts to manage money: institutional money managers such as mutual funds, hedge funds and investment advisers. A sell-side analyst makes recommendations that the firm distributes to clients; a buy-side analyst advises their own employer on what to buy, hold or sell. This page sets out the difference with the U.S. rules that apply to each side, and explains why the rules on sell-side research exist.

The SEC's investor guide on analyst recommendations, as captured by the Internet Archive on October 16, 2026, puts it this way: sell-side analysts "typically work for full-service broker-dealers and make recommendations on the securities they cover," and "many of the more popular sell-side analysts work for prominent brokerage firms that also provide investment banking services for corporate clients", including companies whose securities the analysts cover. Buy-side analysts "typically work for institutional money managers, such as mutual funds, hedge funds, or investment advisers, that purchase securities for their own accounts. They counsel their employers on which securities to buy, hold, or sell," and they "stand to make money when they make good calls." The guide also names a third group, independent analysts, who "typically aren't associated with firms that underwrite the securities they cover" and often sell their research by subscription (SEC, Analyzing Analyst Recommendations, Internet Archive capture).

Buy side vs. sell side at a glance

The money runs in a chain. Companies pay the sell side to raise capital and for advice; the buy side pays it commissions and spreads for research and trade execution; clients pay the buy side to manage their money.

Sell-side analysts and the rules on their research

FINRA Rule 2241 defines a research analyst as "an associated person who is primarily responsible for, and any associated person who reports directly or indirectly to a research analyst in connection with, the preparation of the substance of a research report, whether or not any such person has the job title of 'research analyst.'" A research report is a written or electronic communication "that includes an analysis of equity securities of individual companies or industries" and "that provides information reasonably sufficient upon which to base an investment decision" (FINRA Rule 2241). The definition excludes, among other things, commentaries on economic, political or market conditions and technical analyses of the demand and supply for a sector, index or industry based on trading volume and price.

The rule exists because a sell-side firm can earn investment banking fees from the companies its analysts cover. Rule 2241 requires firms to keep written policies and procedures to identify and manage conflicts of interest in the preparation and distribution of research, in analysts' public appearances, and in the interaction between analysts and investment banking, sales and trading staff, subject companies and customers. Among its requirements, firms must "prohibit compensation based upon specific investment banking services transactions or contributions to a member's investment banking services activities," and a committee reporting to the board must review and approve the pay of the analysts primarily responsible for research reports at least annually. The same section requires those policies to prohibit investment banking staff from reviewing or approving research reports before publication and from supervising or controlling research analysts, including their pay.

The SEC adds a certification. Under Regulation AC, a broker-dealer that distributes a research report prepared by a research analyst to a U.S. person must include "a clear and prominent certification" in which the analyst attests that the views in the report "accurately reflect the research analyst's personal views," and either that no part of their compensation "was, is, or will be, directly or indirectly, related to the specific recommendations or views" in the report, or, if it was, the source, amount and purpose of that compensation, with a disclosure that it could influence the recommendations (17 CFR 242.501).

Buy-side analysts

A buy-side analyst works for the firm that invests: they study companies, sectors or markets and make recommendations to the firm's portfolio managers, who decide what to buy or sell for the funds or accounts they manage. Their research is an input to the firm's own decisions, so it is not distributed to the public. A buy-side firm that advises clients for pay is generally an investment adviser. The Investment Advisers Act defines an investment adviser as "any person who, for compensation, engages in the business of advising others, either directly or through publications or writings, as to the value of securities or as to the advisability of investing in, purchasing, or selling securities," with exceptions such as banks (15 U.S.C. 80b-2(a)(11)).

The buy side reads sell-side research, among other inputs, and the sell side earns commissions and fees from the buy side's trades. The retail trader page explains where individual investors fit, and how FINRA separates institutional from retail accounts.

Buy-side vs. sell-side analyst: the job compared

Both sides use the same tools: company filings, financial models, valuation and, for some, price charts; the technical analysis vs. fundamental analysis page compares the two families of methods. What differs is who reads the work, how the analyst is judged and what the work becomes. The table keeps to what published sources say; the academic studies each rest on one buy-side firm or on high-status banks, so they describe those firms, not every analyst.

The 2008 study recalls that, before the 2003 Global Settlement between regulators and investment banks, regulators had alleged that investment banking fees used to support research made sell-side analysts overly optimistic. It also notes that buy-side analysts do not face the potential conflicts of working for investment banking firms or the need to generate commissions, yet their forecasts were less accurate at the firm it studied: fewer conflicts did not mean better forecasts there.

Pay figures

The official occupational pay statistics do not separate buy-side from sell-side analysts, so the page gives no comparison between the two, only figures for the occupation as a whole. In the Bureau of Labor Statistics' Occupational Employment and Wage Statistics for May 2025, occupation 13-2051, financial and investment analysts, counted 361,980 jobs in the United States, with a median annual wage of $102,740 and a mean annual wage of $116,800 (BLS public data API, series OEUN000000000000013205101, OEUN000000000000013205113 and OEUN000000000000013205104).

The spread within the occupation is wide: a quarter of these jobs paid $79,290 or less a year, and a tenth paid $180,860 or more (series OEUN000000000000013205112 and OEUN000000000000013205115). Those figures mix analysts of both sides and of other employers, so they say nothing about which side pays more.

More market terms are on the trading concepts page.