Principal vs. Agency Trading: Which Strategy is Right for You?
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8 min read
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investment
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July 31, 2025
04:35 PM
Benzinga
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Principal vs. agency trading refers to two different ways financial institutions execute trades on behalf of clients or themselves
In principal trading, the firm buys or sells securities for its own account, acting as the counterparty to the trade and potentially fiting from price differences
In agency trading, the firm executes trades on behalf of clients, earning a commission without taking on market risk
Understanding the differences between these models is essential for investors, as it impacts costs, transparency, and potential conflicts of interest in the trading cess.Table of ContentsPrincipal Trading OverviewWhat is Principal Trading?Advantages of Principal TradingSee All 18 ItemsPrincipal Trading OverviewPrincipal traders primarily work for their own fits and hold commodities in inventory for others to trade
Here's how principal trading works.What is Principal Trading?In principal trading, which is a form of prietary trading, the brokerage owns the securities it sells, keeping them in inventory
When an investor places a buy order, the brokerage checks its inventory
If it has the commodity on hand, it sells it for its preferred price, pocketing the difference between its purchase price and the investor's requested price.If the brokerage doesn't have s in inventory, it seeks s from other entities, using the firm's capital to buy s
It holds s for resale, seeking a fitable selling price.The difference between the original purchase price and the seller's final price is called the bid-ask spread
Principal traders try to buy low when ordering s and sell high by timing the market.Advantages of Principal TradingSome of the s of principal trading include:Quicker Transactions: When the brokerage uses its own capital, there's no need to wait for the client's funds to .More Liquidity: Frequent transactions can lead to tighter bid-ask spreads, driving more market activity and increasing the chance of a fit.Lower Costs and Fees: The brokerage doesn't earn commissions and charges little (if anything) in the way of fees.Disadvantages of Principal TradingA few drawbacks could arise in principal trading, including:Possible Conflicts of Interest: The brokerage trades to earn fits for itself first.Little Transparency: An individual investor doesn't have a lot of insight into the brokerage's actions and can't be certain they're getting the best deal.Wider Bid-ask Spreads: When a principal trader makes frequent transactions to stimulate liquidity, the bid-ask spread may widen when are less liquid.Example of Principal TradingLet's say an individual investor wants to buy 50 s in Airstar Airlines for $20 per
The investor requests their p-trading brokerage to make that purchase.First, the brokerage checks its holdings to see whether it has enough Airstar s to sell to the investor
If so, it executes the order, the investor gets Airstar s, and the transaction closes.If the brokerage does not have enough Airstar s, it obtains them from other institutions
For example, it could purchase the s at $15 each and sell them back to the investor for $20
As a result, the investor gets Airstar s at the price they wanted, and the brokerage fits $5 per .Agency Trading OverviewAgency traders have a duty: to represent the interests of their clients above their own
Here's what agency trading entails.What is Agency Trading?Agency traders put their clients' needs over their company's needs without the double motive of earning income for their firm
To the investor, the cess of agency trading isn't that different from principal trading
The investor requests that their brokerage execute a trade.The agency enters the market on behalf of the client, looking for deals on securities for the best price and lowest transaction fees
When the brokerage finds acceptable commodities, it buys them and sells them back to the client.Advantages of Agency TradingThere are a few benefits to agency trading.Best Interests of the Client: Agency traders, fiduciaries, must put their clients' interests above their own.Transparency of Operations: The agency trader is more transparent its pricing and activity.Cost-Efficient Trading: Agents often have networks of potential trading partners, allowing trading to happen more quickly and keeping transaction costs low.Disadvantages of Agency TradingSome of the potential pitfalls of agency trading include:Limited fit spects: With agency trading, the brokerage has less leverage than if it owned the s, limiting the chances of a big payday for the client.No Control Over Timing: When backed up with large market orders, an agency trader may bundle securities for efficiency, delaying some trades from executing.Adverse Market Impact: Large orders from brokers could alter the marketplace, possibly hindering liquidity and lowering commodities' values in illiquid .Example of Agency TradingLet's return to the Airstar Airlines example
An investor wants to buy 100 s at $17 each, so they call their brokerage to set up an agency trade
The agent acts as a go-between for the investor and the party selling Airstar stock.The agency es to find someone selling Airstar s for $17
It places the order on the client's behalf
After the s are traded, the investor takes ownership of them
The investor pays the agency the requisite fees, and the transaction concludes.Principal Trading vs
Agency Trading: Key DifferencesIs principal trading or agency trading the structure that fits your needs? Here are the factors to consider.Role of TradersAgency traders are intermediaries working strictly on behalf of their clients
To them, everything is for the investor's benefit
Principal traders' primary motivation, by contrast, is to earn fits for the company.Level of RiskPrincipal traders working for their fit motives are essentially playing with house money
They may take on riskier positions to generate higher payouts
Agency traders working for clients tend to limit their clients' exposure to risk.CostBoth principal and agency traders may charge transaction and commission fees
Since principal traders fund their own transactions to make fits, they usually target certain points in the bid-ask spread to generate high earnings
The client could end up paying for the volatility, especially if the trader's activity is impacting the commodity's price.Agency traders charge fees for trade executions
They seek to earn fits for their clients at the prices those clients are willing to sell
Agency traders are more transparent where their investors' funds are going.How to Choose Between Principal vs
Agency TradingDeciding what kind of trader will work for your purposes depends on a few factors
Here are some of the most pertinent ones:Volatile : In volatile , principal trading entails more risk but could turn a sizable fit, while agency traders seek favorable execution prices.Slow or Illiquid : Principal traders may struggle to sell in a stagnant market, forcing them to act at prices less favorable to clients.Objectives and Risk Tolerance: Principal traders make short-term transactions on quick sales; agency traders aim to grow and meet long-term investor goals.Regulatory Compliance: Agency traders are subject to more industry regulations because they work on their clients' behalf.Expertise: Principal traders know more for their experienced clients, while agency traders may be better for novice investors
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Agency Trading: Choose CarefullyWhere you land in the comparison of principal vs. agency trading depends on the goals you have, your risk tolerance, and your investment objectives
Take time to learn the differences and choose the style that best aligns with your needs.Frequently Asked QuestionsQWhat is the difference between a principal and a broker agent?A A principal trades for their own account, using their own funds and taking on market risk, aiming to fit from price movements
A broker agent executes trades on behalf of clients, does not take a market position, and earns commissions or fees for facilitating transactions
QWhat does agency trading mean?A Agency trading means a broker executes trades on behalf of a client without using its own funds or taking a position in the market
The broker earns a commission or fee for facilitating the transaction, and the client bears the market risk
QWhat is the difference between principal and prietary trading?APrincipal trading refers to a firm buying or selling securities for its own account, either as part of its market-making role or investment strategy. prietary trading (p trading) is a type of principal trading where firms use their own capital to trade purely for fit, without executing client orders
It is more speculative and focused on generating direct trading fits
Sarah EdwardsSarah Edwards is a finance writer passionate helping people learn more what’s needed to achieve their financial goals
She has nearly a decade of writing experience focused on budgeting, investment strategies, retirement and industry trends
Her work has been published on NerdWallet and FinImpact.
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