Trader Job Description

A Trader is the person on a financial firm's desk who actually puts trades into the market and owns the risk that results. BLS describes securities and commodities traders as workers who carry out buy and sell orders for stocks, bonds and commodities from clients and make trades on behalf of the firm itself. It adds that investment banks primarily employ these workers, although some work for commercial banks, hedge funds and private equity groups.

The job splits into a few recognizable seats. A flow trader, sometimes called a market maker, quotes bids and offers to clients all day and then manages the inventory those trades leave behind. A corporate bond trader who buys a block of a newly issued bond from an asset manager mid-morning will hedge the rate exposure with Treasury futures, show the bonds to other accounts through the sales desk and decide how long to hold what remains. An agency or execution trader never takes the other side of the trade: the job is to fill an institutional order with as little market impact as possible, choosing among VWAP and implementation-shortfall algorithms, exchanges, dark pools and block-trading networks, and then defending those choices in a transaction-cost review. A principal or proprietary trader commits firm capital to a view, within limits the risk department sets and monitors.

Commodity and derivatives traders work the same logic in different markets. An energy trader may hedge a physical crude position with futures, while an options trader on an equity derivatives desk manages delta, gamma and vega across a grid of strikes and expirations, rebalancing as the underlying moves.

A normal day starts before the opening bell. Traders read the overnight session, economic releases and company news, check positions and limits carried from the prior day, and agree with sales on which client orders need attention. During the session the work is constant monitoring and small decisions: tightening a quote, pausing an algorithm that is trading too fast, pulling liquidity ahead of a data release, or calling a counterparty about a trade that does not match. After the close, the desk reconciles positions with operations, explains the day's profit and loss to the desk head and books anything that did not settle cleanly.

The tools are specific: an order management system for client orders, an execution management system for routing, FIX connections to brokers and venues, Bloomberg or Refinitiv terminals for data and chat, and in-house risk screens. Traders on quantitative seats write Python or Excel models to price instruments and measure exposures. Every trade leaves an audit trail, and supervisors and compliance staff review order handling, so a trader's working day includes notes, approvals and exception reports as well as trading.

BLS says entry-level jobs in the broader securities, commodities and financial services sales occupation typically need a bachelor's degree, and that a master's in business administration may help with advancement. For trading seats, a degree in finance, economics, mathematics, statistics, engineering or computer science is the usual starting point. For quantitative or electronic seats, plan on serious coursework in programming, probability and statistics, and consider a graduate degree in one of those subjects.

Licensing is the hard requirement. FINRA's Securities Trader registration requires candidates to pass the Securities Industry Essentials (SIE) exam and the Series 57, the Securities Trader Representative Exam. FINRA describes the Series 57 as measuring the knowledge an entry-level representative needs to perform the critical functions of a securities trader, including proprietary trading in equity, preferred or convertible debt securities away from an exchange. To sit the Series 57, a candidate must be associated with and sponsored by a FINRA member firm or other self-regulatory organization member, so the exam comes after a firm hires you. Effective January 19, 2027, FINRA's wait to retake a failed qualification exam will drop to 15 days, from 30 days, after the first and second unsuccessful attempts.

Traders who register with the National Futures Association as associated persons of a futures commission merchant, introducing broker, commodity pool operator or commodity trading advisor are, in most cases, required to pass the Series 3, the National Commodity Futures Examination. The CFA charter (CFA Institute) is an optional credential, not a trading license, that a trader may pursue later in a career.

Typical entry routes are a summer internship on a sales and trading floor that converts to a full-time analyst offer, a rotational analyst program that places new hires on a desk after training, or a move from a related seat such as trade support, middle office risk or desk strats. As a rough guide, new hires spend one to three years as an analyst or junior trader, working small orders, maintaining risk reports and covering for senior traders, before running a book of their own.

The skills that matter on a desk are concrete:

• Market mechanics: order types, auctions, settlement, margin, repo and how each venue matches orders
• Pricing math: bond yields and duration, futures basis, option Greeks and volatility surfaces
• Programming and data: Python, SQL and Excel for pricing, back-testing and post-trade analysis
• Platforms: order and execution management systems, FIX messaging, Bloomberg or Refinitiv
• Judgment under pressure: taking a loss early, following limits and speaking up when a trade goes wrong

BLS projects little growth for the occupation that includes traders. Its Occupational Outlook Handbook update of August 27, 2026 puts growth for securities, commodities and financial services sales agents at 1 percent from 2025 to 2035, slower than the average for all occupations, or about 7,500 jobs added to a base of 531,000. Even so, BLS projects about 35,100 openings for the occupation each year on average, and expects most of them to come from replacing workers who move to other occupations or leave the labor force. On the trading side specifically, the handbook says automated trading systems have reduced demand for securities traders.

Within the securities and investments industry, the OEWS survey counted 173,040 workers in the occupation in May 2025. BLS does not report traders separately, so that figure covers the whole occupation within the industry.

For 2026 and 2027, several market-structure changes also affect how desks operate, whatever happens to headcount.

Treasury clearing. The SEC's rule requiring central clearing of eligible U.S. Treasury trades has a compliance date of December 31, 2026 for cash transactions and June 30, 2027 for repo. In September 22, 2026 remarks, SEC Commissioner Mark T. Uyeda said that before the rule only about a quarter of Treasury cash trades and less than half of repo transactions were centrally cleared, and that, according to FICC, daily cleared Treasury volumes are now approximately 165% higher than before the Commission's proposal. He urged market participants to maintain momentum on their implementation efforts and said the SEC does not currently intend to extend these deadlines.

Equity tick sizes. On September 18, 2024, the SEC adopted amendments to Regulation NMS that set a minimum pricing increment of $0.005 for quotes and orders priced at $1.00 or more in certain stocks and reduced access fee caps. On June 11, 2026, the Commission extended relief from the compliance dates for those rules until the first business day of November 2027, so equity traders and the developers who code their algorithms have that date on the calendar.

AI on the desk. FINRA's January 2026 note on AI agents warns that, unlike human employees, AI agents lack tacit knowledge and may also lack the transparency and predictability that traditional supervisory and governance practices assume. For a desk, any agent that touches orders is one more system someone has to test, log and sign off on.

For someone entering the field, the practical read of the BLS figures is that seats open through turnover rather than growth. Build the skills the calendar above calls for: market judgment, code, a working knowledge of the rulebooks and the discipline to explain a loss clearly and stay inside limits.

Dear Head of Credit Trading,

I am applying for the Junior Investment Grade Credit Trader role at Harborline Securities. For the past two years I have worked on the credit trade support team at Westmere Capital Markets, and for the last eight months I have sat with the investment grade desk as its analyst. I hold the SIE and passed the Series 57 in March.

My day starts at 6:45 with the overnight risk report, which I rebuilt in Python after the desk asked for sector and maturity buckets it could read in one screen. During the session I handle odd-lot client inquiries under the senior trader's limits, update the desk's run sheets and price bonds for sales using recent trade reports and our curve model. When a client bid list comes in, I pull comparable trades, flag the names where we hold inventory and draft levels for the trader to adjust.

One afternoon in July a large sell order hit while the senior trader was off the desk. I worked it in pieces against our hedge, kept every child order inside the limits we had agreed that morning and wrote up each fill for the best-execution file. The trader changed two of my levels when she returned and walked me through why. I learned more from that review than from any course.

What draws me to Harborline is the electronic trading build-out your desk described at our campus event. I want to be the trader who understands both the bonds and the code that quotes them.

I would welcome a conversation and am glad to talk through a live market scenario.

Sincerely, Jordan Ellis