Sales and trading is the division of an investment bank that buys and sells securities for institutional clients and, within limits, for the bank itself. It handles stocks, bonds, currencies, commodities, and derivatives, and it earns money on nearly every transaction it touches. Federal law requires any firm doing this work to register with the Securities and Exchange Commission as a broker-dealer before it can transact in securities through interstate commerce.1Office of the Law Revision Counsel. 15 USC 78o – Registration and Regulation of Brokers and Dealers The division is the engine of the secondary market, where investors trade securities that have already been issued, and its activity shapes the prices, liquidity, and speed at which trillions of dollars change hands.
Where Sales and Trading Sits Inside the Bank
Investment banks generally run three lines of business. Advisory bankers counsel companies on mergers and acquisitions. Underwriting teams help companies issue new stocks or bonds. Sales and trading works the market that opens the next morning after those deals close.
Advisory work is project-based, paid in fees, and measured in months or years. Sales and trading is measured in real time. Profit and loss updates by the second, and revenue is generated every day the market is open. The division also feeds directly off the underwriting side: when the bank helps a company issue new securities, the sales and trading teams distribute them to institutional buyers and then support an active market in those securities afterward. That ongoing support is what gives investors the confidence to buy in the first place, because they know they can get out later.
What the Sales Desk Does
Sales professionals are the division’s relationship side. Each salesperson covers a defined group of institutional accounts: pension funds, mutual funds, insurance companies, hedge funds, sovereign wealth funds, and endowments. Their job is to know each client’s mandate, risk tolerance, and strategy well enough to pitch trade ideas the client will actually use.
A typical morning starts before the market opens. The salesperson reviews overnight moves, reads the bank’s research, and calls clients with actionable ideas. If a fund manager wants more exposure to investment-grade corporate bonds, the salesperson finds out what the trading desk can offer, negotiates the terms, and hands the order to the trader who will fill it. The bank earns revenue on the volume that flows through those conversations.
When a salesperson recommends a trade, FINRA Rule 2111 requires a reasonable basis for believing the recommendation suits the client’s financial situation and investment objectives.2FINRA. FINRA Rule 2111 – Suitability For institutional accounts holding at least $50 million in assets, a modified standard applies: the firm meets its obligation if it reasonably believes the client can independently evaluate the risks and the client confirms it is exercising independent judgment.3FINRA. FINRA Rule 2111 (Suitability) FAQ The exemption reflects the reality that a large hedge fund does not need the same protection as an individual investor.
Before any of this happens, the firm has to bring the client on board. Anti-money-laundering rules require broker-dealers to verify each client’s identity, collect entity documents like articles of incorporation, identify beneficial owners, and screen accounts against government watchlists.4eCFR. 31 CFR Part 1023 – Rules for Brokers or Dealers in Securities If the firm cannot verify a client’s identity, it has to decline or close the account.
What the Trading Desk Does
Traders execute orders and manage the risk that comes with holding securities. When the sales desk brings in an order, the trader decides how to fill it: match it against the firm’s inventory, route it to an exchange, or work it over time to avoid moving the market.
Market Making
A central function of the trading desk is market making. The desk quotes a bid price (what it will pay) and an ask price (what it will accept) on a given security, standing ready on both sides. That means a large institution can move in or out of a position without waiting for a natural counterparty to appear. Markets stay liquid, and prices adjust smoothly as new information comes in.
Holding inventory carries real risk. If a trader buys a block of corporate bonds and the market drops before the position is sold, the firm eats the loss. Traders manage this by hedging, using offsetting instruments such as options or short positions in a related index. The goal is to earn the spread between bid and ask while keeping directional exposure small.
Best Execution
Federal regulations require trading centers to prevent “trade-throughs,” which means executing at a worse price than a better quote available elsewhere in the national market system.5eCFR. 17 CFR 242.611 – Order Protection Rule A trader cannot fill an order at whatever price is convenient; the order has to be routed to the venue offering the best available price. The SEC has continued to update these rules, including changes to access fee caps and disclosure of order execution quality.6U.S. Securities and Exchange Commission. SEC Adopts Rules to Amend Minimum Pricing Increments and Access Fee Caps and to Enhance the Transparency of Better Priced Orders
The Limit on Proprietary Trading
Before the 2008 crisis, many banks ran large proprietary trading operations, using firm capital to place speculative bets. The Volcker Rule now prohibits banking entities from engaging in proprietary trading.7Office of the Law Revision Counsel. 12 USC 1851 – Prohibitions on Proprietary Trading and Certain Relationships With Hedge Funds and Private Equity Funds Implementing regulations define proprietary trading as buying or selling financial instruments as principal for the firm’s own trading account.8eCFR. 12 CFR Part 248 – Proprietary Trading and Certain Interests in and Relationships With Covered Funds Important exceptions cover market making, hedging, and underwriting, so a desk can still hold inventory to serve clients. What it cannot do is take large speculative positions unrelated to client needs.
What the Division Trades
The products fall into two broad categories, and most banks organize their desks around this split.
Equities
The equities desk trades shares of publicly listed companies, equity derivatives such as options and index futures, and related instruments like exchange-traded funds. Most equity trading happens on electronic exchanges where prices are transparent and orders match in milliseconds. Equities desks also handle block trades, where an institutional client wants to move a large position without pushing the price against itself. The desk often commits firm capital to absorb the block temporarily.
Fixed Income, Currencies, and Commodities
FICC covers everything else the division touches: U.S. Treasuries, corporate bonds, mortgage-backed securities, municipal bonds, interest rate swaps, foreign currencies, and physical commodities. Much of this trades over the counter rather than on a centralized exchange, so transactions are negotiated directly between parties. Bond markets historically had less price transparency than stock markets, though reporting requirements have narrowed the gap. Corporate bond trades must be reported to FINRA’s Trade Reporting and Compliance Engine within 15 minutes of execution.9FINRA. FINRA Rule 6730 – Transaction Reporting TRACE was built specifically to bring transparency to the over-the-counter fixed-income market by making reported prices publicly available.10FINRA. Trade Reporting and Compliance Engine (TRACE)
Many over-the-counter derivatives, particularly interest rate swaps and credit default swaps, now have to be cleared through a central counterparty. Swaps subject to mandatory clearing must be executed on a designated swap execution facility rather than negotiated privately, unless no facility makes the swap available to trade.11Federal Register. Swap Execution Facility Requirements Central clearing was one of the direct responses to the 2008 crisis, aimed at keeping a single firm’s failure from cascading through the system.
How the Division Makes Money
Revenue comes from a handful of streams, all tied to transaction volume.
The most direct source is commissions, which are explicit fees charged per trade. For institutional equity orders these run from fractions of a cent to several cents per share. The bid-ask spread adds another layer: the desk buys at the bid, sells at the ask, and keeps the difference. Margins on any single trade are thin, so the model depends on volume. A large bank may handle billions of shares a year, and small per-trade profits compound.
Prime brokerage is a separate revenue channel serving hedge funds. Prime brokers lend securities to clients that need to short-sell, provide margin financing for leveraged positions, and offer clearing and custody. The largest operations fund much of this lending from internal inventory rather than borrowing externally, which improves margins. Securities lending and margin financing are meaningful contributors for the biggest firms.
On a bank’s financial statements, trading revenue appears under noninterest income, the category that captures earnings from sources other than traditional lending. At major investment banks, it is often one of the largest components of that line.12Federal Reserve Bank of Cleveland. Trends in the Noninterest Income of Banks
Capital Requirements and Internal Limits
Trading desks operate under layered risk controls. Internally, nearly every desk works under Value-at-Risk limits, which estimate the maximum potential loss the desk’s portfolio could take over a given period at a given confidence level. Limits are monitored daily, and as positions push toward the cap, the desk has to reduce inventory or hedge more aggressively.13Federal Reserve Board. Risk-averse Dealers in a Risk-free Market – The Role of Trading Desk Risk Limits
Externally, federal rules set minimum net capital that broker-dealers have to hold at all times. A firm that holds customer funds and securities must maintain at least $250,000 in net capital, and a dealer in OTC derivatives has to maintain at least $20 million in net capital and $100 million in tentative net capital.14eCFR. 17 CFR 240.15c3-1 – Net Capital Requirements for Brokers or Dealers These rules act as a financial cushion protecting clients and the wider market from a firm’s sudden failure. FINRA can impose fines and, for intentional misconduct, permanent bars on individuals.15FINRA. Sanction Guidelines
What Happens After the Trade
A trade is not finished when a price is agreed. Both sides confirm the terms, and securities have to be exchanged for cash through settlement. Federal rules require settlement of most securities no later than one business day after the trade date, the standard known as T+1.16eCFR. 17 CFR 240.15c6-1 – Settlement Cycle The timeline was shortened from T+2 in 2024 to reduce the window in which either side is exposed to the other’s failure to deliver.
Settlement runs through the Depository Trust and Clearing Corporation and its subsidiaries. A central counterparty nets buy and sell obligations across firms, so each firm settles only its net position rather than every trade individually, and securities move between accounts as electronic book entries.17DTCC. Understanding the DTCC Subsidiaries Settlement Process For institutional trades, the broker-dealer submits confirmation data, the client reviews it, and once the client affirms, the trade moves into the settlement queue.18U.S. Securities and Exchange Commission. Confirmation and Affirmation of Securities Trades; Matching Mismatches have to be resolved before settlement can happen.
Who Works on the Desk
The division uses the standard investment banking hierarchy: analyst, associate, vice president, director or senior vice president, and managing director. Entry-level analysts spend two to three years learning the mechanics of a single product or desk. Responsibilities shift over time from execution toward client relationships, risk oversight, and revenue generation.
What sets sales and trading apart from other parts of finance is how directly performance is measured. A trader’s profit and loss is calculated in real time. A salesperson’s contribution shows up in the order flow and commissions their clients generate. Advancement tracks measurable results rather than seniority alone. The pace matches the market, with pre-market work often starting well before the opening bell.
On the sales side, juniors support senior salespeople with research summaries and client communication before taking on their own accounts. On the trading side, juniors monitor positions, help with hedging, and handle smaller orders before earning the authority to run a full book of risk.