What Is a Principal Order?

What Is a Principal Order?

4 Min.

A principal order is when a broker-dealer buys or sells for their own account instead of executing trades for clients. These trades are registered on the exchanges where shares are traded before execution. Broker-dealers purchase shares on the secondary market and hold them before selling. This is mainly an institutional investment matter.


In financial trading, the principal order denotes a transaction executed by a broker-dealer for its proprietary interests, distinct from executing trades on behalf of clients. Such orders entail inherent risks assumed by the broker-dealer. Compliance dictates that the exchange be informed of these trades. They are duly recorded as principal orders within exchanges, safeguarding against potential insider trading improprieties, thus upholding investor protection.

Principal Orders Explained

Principal orders, commonly known as principal trades, represent distinctive transactions wherein a broker-dealer operates autonomously. Instead of conducting trades for clients, the broker assumes the role of a dealer, effecting transactions within its internal account.

The process unfolds as follows: Preceding trade execution, the broker communicates its intent to engage in a principal order to the relevant exchange where shares are traded. Subsequently, the exchange designates the trade as such. This procedural step empowers regulators to monitor substantial trade volumes, safeguarding ordinary investors against exploitative trading practices and illicit insider trading.

Upon registration, the broker procures shares from the secondary market and retains them within its proprietary account for a designated span. Principal trades are often motivated by the anticipation of share price appreciation. Upon reaching the desired valuation, the broker liquidates its share inventory, yielding a profit. Simultaneously, a commission can be accrued from the sale. In select instances, the broker may also execute substantial block orders to institutional investors from its internal account, employing a principal order mechanism. Further insights on this aspect are elucidated below.

The Realm of Principal Orders

Principal orders predominantly concern institutional investments, with limited applicability to retail clients. The merits of principal trades chiefly encompass efficient execution and cost-effectiveness. In scenarios demanding specialized or prompt execution, an agency trade might not suffice to fulfill client requirements. In pursuit of optimal client service and alignment with their interests, a securities dealer's dual role as a broker, engaging in internal inventory trading, often proves judicious.

Consider a scenario where a substantial institutional investor urgently seeks to acquire shares of a specific company. Executing a sizable block order could inadvertently reveal intentions to the market. Herein, a responsive broker-dealer, valuing the client relationship, can directly vend the desired stocks in a partially discreet transaction. Transparency is upheld, clarifying that the sale originates from internal inventory. Should the client concur, confidentiality remains uncompromised. Principal trades predominantly cater to institutional investors, leaving retail investors to engage in agency trades as the prevailing practice.

Principal Orders vs. Agency Orders

There are two fundamental categories in trading: principal trade orders and agency trade orders. When it comes to an agency trade order, a broker engages in trading to serve a client's interests rather than its own. The broker's compensation takes the form of a commission. In contrast, a principal trade involves a dealer assuming the dual role of broker and trader, operating from their inventory and levying a spread as remuneration. Notably, most retail or individual investors opt for agency trades when executing transactions.

The mechanics of agency trading unfold as follows: Imagine you are an investor seeking to purchase stock. You liaise with your broker, who delves into the market, seeking a seller willing to part with the equivalent number of shares at your designated price point. Upon successful matchmaking and trade execution, the exchange duly records the transaction. Subsequently, the involved parties exchange the requisite funds and securities, thereby completing the process.


The concept of principal orders underscores the practice of broker-dealers engaging in trades for their account rather than on behalf of clients. These trades are meticulously documented on exchanges before execution, serving as a regulatory measure against potentially fraudulent activities. The process of principal orders involves acquiring shares from the secondary market, holding them, and subsequently selling them for profit. While primarily relevant to institutional investors, the dynamic between principal and agency orders underscores the intricacies of trading, with agency trades catering to retail investors' preferences for client-focused execution.

Principal Order
Agency Order
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