What Is a Commission Broker?

What Is a Commission Broker?

A commission broker is a professional who executes trades for clients on behalf of a brokerage firm and earns a percentage of the assets traded. However, some commission brokers engage in unethical practices such as churning and bucketing, prioritizing their interests over their clients.


Within the realm of brokerage firms, commission brokers serve as integral team members, compensated in accordance with the volume of trades they orchestrate. However, the structure of this commission-based system has the potential to foster unethical conduct, particularly among unscrupulous commission brokers. A prime illustration of this is the practice commonly called "churning." In this strategy, a dishonest commission broker deliberately undertakes numerous trades within a client's account solely to amass additional commissions. Regrettably, these excessive trades do not yield any advantages for the client involved.

Decoding Broker Compensation Structures

The flat-fee and commission brokers are the two most common models of how brokers can be paid. The former charges a fixed amount for their services, irrespective of the client's trading volume. This structure cultivates an environment where the client's best interests are paramount, as the compensation remains constant regardless of trading activity.

Unlike their flat-fee counterparts, commission brokers derive earnings from the scale of a client's transactions. Their income fluctuates in direct proportion to the volume of trading undertaken by the client. However, this linkage between earnings and trading volume can sometimes foster unscrupulous behavior.

Unethical practices, such as "churning" - characterized by excessive trading to generate commissions - can manifest within the commission broker model. Another concerning tactic, known as "bucketing," involves a broker exploiting price disparities in their favor without extending the gains to the client. This divergence of interests can tarnish the broker-client relationship.

Responsibilities of Commission Brokers

  • Guidance Provision: Commission brokers extend advisory services concerning stock transactions. Operating under a commission-based model, they commonly furnish solicited suggestions and propose trading concepts to stimulate transaction frequency.
  • Research Dissemination: Commission brokers regularly circulate proprietary research from their brokerage firms to clientele. These research documents often encompass buy and sell recommendations intended to incentivize customer trading.
  • Portfolio Oversight: For full-service brokerage scenarios, commission brokers may make investment decisions on clients' behalf. Vigilance is essential, with investors advised to routinely assess discretionary accounts. This prevents brokers from excessively trading to accrue additional commissions. A telltale sign could be the trading of similar-industry stocks, indicative of potential churning in a client's account.

Commission Broker Compensation

Commission brokers garner a portion of customer-paid commissions for security trades, with allocations between the brokerage company and broker. The proportion awarded to brokers escalates with their trade volume accomplishments.

To elucidate, consider a scenario where a broker yields $500,000 in commissions. In this instance, a 60%/40% division ensues, yielding $300,000 for the broker and $200,000 for the brokerage company. Conversely, a broker generating $100,000 in commission contends with a 30%/70% split, resulting in a $30,000 share for the broker and $70,000 for the brokerage company.

Brokerage entities amplify commission splits for brokers contributing substantial revenue, fostering incentive and business augmentation. Commission brokers encounter the difficulties of a role hinging on sales volume, inducing fluctuations in income frequency, whether weekly, monthly, or annually. Dips in investment activity, typical during sluggish market phases, can potentially influence the financial welfare of commission brokers.


Commission brokers play a pivotal role but face ethical issues like churning. The choice between flat fees and commissions underlines incentive alignment. They manage guidance, research, and portfolios, balancing service with pitfalls. Earnings tied to trade volume bring uncertainty, particularly in market lulls. Upholding ethics is key for trust and integrity.

Commission Broker
Flat-Fee Broker
Follow us
Hexn operates under HEXN (CZ) s.r.o. and HEXN Markets LLC. HEXN (CZ) s.r.o. is incorporated in the Czech Republic with the company number 19300662, registered office at Cimburkova 916/8, Žižkov, Praha. HEXN (CZ) s.r.o. is registered as a virtual assets service provider (VASP). HEXN Markets LLC is incorporated in St. Vincent and Grenadines with the company number 2212 LLC 2022, registered office at Beachmont Business Centre, 379, Kingstown, Saint Vincent and the Grenadines