Brokers

A broker sits between you and a trading venue or liquidity pool. You want exposure to a market, but you can not directly plug into an exchange matching engine, a bank dealing desk or an OTC network. The broker holds client money, provides a platform and passes orders through to wherever they can be filled.

On the screen that function looks similar across asset classes. You see a chart, a quote and an order ticket. Underneath, the way the broker gets that quote and how it handles your order can be very different. In some models the broker simply routes client orders on an agency basis and does not take the other side. In other models it acts as principal, runs a book against clients and hedges only part of that risk.

Add to that the asset mix a broker offers, and you get most of the “types” traders talk about. Stockbrokers, forex and CFD brokers, futures and options brokers, crypto exchanges that act like brokers. Each sits in a slightly different legal and technical setup, and each tends to favour some execution models over others. Understanding those combinations matters more and more once you move from tiny accounts to serious capital.

In this article we’re going to focus on the different types of brokers. If you want to learn more about the different assets we talk about in this article, then I recommend you visit DayTrading.com, which features trading guides and tips for all the asset types mentioned in this article.

Core execution models across markets

Across most trading assets, the same basic execution models appear and just get rebranded. Once you get those straight, terms like ECN, STP and market maker are easier to parse.

At one end you have agency brokers. They pass orders to exchanges or outside counterparties and do not usually take a directional position against the client. Their income comes from commission, platform fees, stock lending, payment for order flow and other routing arrangements. Classic stockbrokers and many futures firms work mostly in this mode. They still have conflicts to manage, but they do not win directly when a specific client loses.

Next you have principal dealing. Here the broker stands on the other side of the trade. In retail forex and CFD markets this is common. When you buy EURUSD, the broker may sell that amount to you from its own book. Risk managers decide what portion of client exposure to hedge with banks or other liquidity providers. The firm earns from spread markups, carry and the net result of running a book against client flows.

Market making is a structured version of that principal role. A market maker posts two-way prices and stands ready to quote size. In equities and futures the market maker is often a specialist firm separated from the retail broker. In many retail OTC platforms the broker itself fills that function internally.

STP, or straight-through processing, is meant to describe brokers that route most orders automatically to outside liquidity providers without a manual dealing desk. ECN, or electronic communication network, refers to a pooled order book where multiple banks, firms and sometimes clients quote prices and match with each other. In both cases the broker tries to neutralise directional exposure and earn mainly from commission and small markups.

DMA, or direct market access, is about how close the client sits to a limit order book. A DMA broker streams external prices with minimal shading and sends client orders straight through to that book under the client’s ID or a shared one. The broker still manages margin and risk, but it does not rewrite quotes as heavily as a classic dealing desk.

Hybrid routing brings all of this together. Many brokers run an internal book for small random trades and pass more toxic or larger flow to banks, ECNs or exchanges. They may advertise ECN or STP accounts while still using a mix of A-book (routed) and B-book (internalised) handling under the hood. A lot of retail flow is managed that way, even if the marketing material keeps the description vague.

Equity and ETF brokers

Equity and ETF brokers connect clients to stock exchanges. They hold assets in custody, process corporate actions and pass orders into central order books.

Full-service and advisory

Full-service stockbrokers blend trading with advice and planning. You might have a named adviser, access to in-house research, model portfolios and periodic reviews. The trading engine behind that can be fairly standard agency routing to equity venues. Orders go through a central desk that aggregates flow and sends it to exchanges or market makers.

Fees are layered. There may be a percentage charge on assets under management, ticket-based commission, platform fees and charges for extras like currency conversion or professional data packages. This structure focuses more on long term investors and wealth clients than on high-frequency traders. Execution quality matters, but the client is mainly paying for guidance, paperwork and integration with broader financial planning.

Discount online brokers and neo-brokers

Discount brokers and newer app-based firms stripped much of that overhead and aimed at low-cost, execution-only access. Many now offer zero-commission trading in their main markets. Revenue comes from spreads on foreign exchange conversions, income on idle cash, lending out client shares and sometimes payment for order flow from wholesalers.

In this group the execution model is usually agency toward market makers. The broker aggregates client orders and sends them to internal or external market makers who provide NBBO-aligned prices in the US or equivalent best bid/offer logic in other markets. The retail platform itself does not run a large directional book in the shares it offers.

For an active share or ETF trader this model can be fine as long as routing policies and fills stay fair. You want to know how the broker handles partial fills, auction periods, extended hours and volatile open/close auctions. Since many of these firms monetise order flow, their incentives lean slightly toward high volume but still do not depend on individual client losses.

Direct-market-access (DMA) equity brokers

DMA equity brokers and active-trader platforms move closer to raw exchange access. They allow clients to send orders to specific venues, choose time-in-force instructions and sometimes supply or take liquidity with more control over fees and rebates.

The broker still sits as clearing party and risk manager but exposes more of the real order book to the client, including depth beyond top of book. That suits intraday traders, arbitrage desks and some funds. Commission is explicit and usually higher per share, but effective cost can be lower for strategies that earn exchange rebates or rely on precise routing.

From a model perspective, DMA equity brokers are nearly pure agency. They do not usually carry large house positions in the same names that clients are trading intraday, outside of normal facilitation roles. Their conflict profile is cleaner, though not perfect; they still have to balance best execution with any routing deals they have made with venues.

Forex brokers

Forex brokers give clients access to margin trading in currency pairs and often other OTC products. Here, execution models like market maker, ECN and STP sit front and centre.

Dealing desk / market maker

In a dealing desk model the broker quotes its own prices to clients, based loosely on interbank streams but shaped by internal markups and smoothing. When a client buys one lot of GBPUSD, the broker is short that amount to the client. A risk book collects all such positions and risk managers decide how much to offset with external hedges.

Retail dealing desks often internalise a high share of trades, especially from small accounts that tend to lose money over time. The broker’s revenue then comes from spreads, swaps and the simple fact that client PnL tends to be negative net of costs. That conflict does not automatically mean foul play, but it does create tension, specially during spikes when client stops might all sit in the same area.

Execution on these platforms can feel smooth during calm periods, with tight or even fixed spreads on major pairs. Around major news, spreads may widen by several times, orders may be rejected or requoted and margin settings can be adjusted. Those changes protect the broker’s capital first and only then the client base.

STP and ECN models

Straight-through-processing brokers try to pass orders to external liquidity providers automatically. Quotes from banks and non-bank market makers are aggregated into a composite feed. Client orders hit that feed and are filled by outside counterparties. The broker adds a small spread markup or a commission and tries not to take much residual risk.

An ECN setup goes closer to a central book. Providers post bids and offers; sometimes larger clients can too. Prices are variable, spreads can be near zero on liquid pairs at busy times, and commissions are fixed per trade volume. This environment suits traders who care about raw pricing and place limit orders as well as market orders.

In both models, win or loss on a specific trade has less impact on the broker’s own PnL. It cares about volume and stable relationships with its liquidity partners. That tends to reduce direct conflicts, though it does not remove routing bias or the impact of any payment for flow agreements.

Prime-of-prime and institutional style access

Retail and small prop clients do not have the credit quality to face large banks directly. Prime-of-prime brokers fill that gap. They hold relationships with tier-one banks and electronic platforms, then break that access into smaller slices for downstream brokers and larger end clients.

If your broker advertises institutional liquidity, chances are it connects to a prime-of-prime. Your orders flow broker → prime-of-prime → bank or matching engine. The advantage is better pricing and more depth than a small broker could manage alone. The cost is another counterparty in the chain and usually higher minimum account sizes or stricter due diligence once volumes climb.

For an experienced forex trader, the key questions are how much flow the broker internalises, how clean the routing out to providers is, and what happens to pricing during stress. The ECN or STP tag is a starting point, not the end of the conversation.

CFD brokers

CFD brokers extend OTC trading to indices, shares, commodities and sometimes crypto prices. They contract with clients on the price difference between entry and exit instead of giving direct ownership of the underlying instrument.

Most CFD brokers share infrastructure and execution models with forex brokers. Many firms sell both from the same platform; you just pick symbols with different prefixes. On index and commodity CFDs, quotes are often based on underlying futures prices plus adjustments. On equity CFDs, quotes track cash market prices with tweaks around market hours and corporate events.

From a trading-model view, many CFD brokers are market makers. They internalise a lot of client positions and hedge net exposure externally only when it reaches certain thresholds. Some firms run partial STP routing for index CFDs or larger single-stock tickets, but small retail flows are often kept in house.

The broker earns from spreads, overnight financing and, on share CFDs, sometimes from internal use of hedging stock inventory. The conflict structure is similar to dealing-desk forex. Regulatory rules in some regions force clearer disclosure and caps on position multipliers, yet the core economic incentive does not change that much.

Futures brokers

Futures brokers are members, or clients of members, of futures exchanges. They connect you to standardised contracts on indices, rates, commodities and currencies, cleared through central counterparties.

Here, the model is mostly agency. Your order is sent to an exchange order book, matched with another participant, and then cleared. The broker tracks your margin against exchange requirements and its own house limits. Gains and losses are settled daily. There is no internal “B-book” in the same sense as retail OTC platforms, because trades are novated to the clearing house.

The broker’s revenue comes from commission per contract, platform fees and sometimes interest spreads on client collateral. Some brokers do run small facilitation books or arbitrage desks, but these sit in separate legal units away from client execution.

For active traders the questions shift from “is my broker my counterparty” to “how robust is this firm’s risk management” and “how good is their access to the exchanges I care about”. The focus is on margin policies, outage history, depth of data and the stability of routing during volatile sessions.

Options brokers

Options brokers work on top of equities and futures markets, giving clients access to listed calls and puts on stocks, indices and futures contracts.

Execution is mainly agency through options exchanges. The broker sends orders into an options book, where market makers and other participants quote prices. Multi-leg strategies can be routed as complex orders, filled against one or more counterparties. The broker has to handle assignment, exercise and the resulting positions in the underlying.

Income comes from option commissions, data packages, sometimes from payment for order flow in retail-heavy markets, and from margin interest on financed positions. Full-service options brokers add education, trade ideas and risk analytics; discount ones focus on low ticket prices and self-directed tools.

From a type-of-broker angle, options firms split into simple add-ons at general equity brokers and more specialised shops that build their entire service around options. The second group usually offers better analytics, more flexible margin treatment and more routing choices, which matter for serious option writers and volatility traders.

Crypto brokers and exchanges

Crypto trading uses a mix of broker and exchange models. Centralised exchanges act as venue, broker and custodian at once, while other firms wrap a thin broker layer around those venues for clients who want a more traditional interface.

Centralised exchanges run order books in spot pairs and derivatives. Users deposit coins or fiat and trade directly against other clients, with the platform as central counterparty. The firm runs margin engines, liquidation logic and internal wallets. Fees per trade and ancillary income from listings, lending and staking form the revenue base.

Broker wrappers sit on top. Payment apps and some multi-asset brokers let you “buy bitcoin” or similar from inside an existing account. Under the hood the broker either trades against its own inventory or routes to a crypto exchange or OTC desk. The client often sees only a simple quote and a position line, not the order book, and sometimes can not withdraw coins on chain at all.

On the derivatives side you find perpetual swap venues and options platforms. Some are regulated futures markets, others are offshore exchanges acting as both broker and market maker. Margin, funding and liquidation behaviour are central here. Many of these platforms run a principal model: they quote contracts, match internal flows and hedge selectively with other venues.

For someone used to FX and CFDs, the crypto “broker” mix looks familiar: heavy use of principal dealing, some attempts at STP-like routing for institutional clients, plus a few pure agency channels through regulated futures and spot exchanges. The legal wrapper and custody risks are what change most.

Multi-asset brokers and how traders actually use them

In practice, many traders and investors do not deal with just one type of broker. Multi-asset firms package several of the models described above under one brand and client login. You might trade cash equities, index CFDs, spot FX and a handful of listed futures from the same group, even though behind the scenes different legal entities and execution desks are handling each line.

A multi-asset broker might route equity orders as pure agency flow to exchanges, run a market-making book for CFDs and spot FX, and offer clearing for a limited set of futures on an agency basis. Crypto exposure might be added through a separate subsidiary that uses a mix of internal inventory and external venues. The client sees a unified portfolio; the firm runs several distinct risk books.

For a trader with basic experience the useful step is to map which bits of that offering sit in which model. Are FX and CFDs mostly B-booked. Are equity and ETF trades sent to real books. Are crypto positions on a regulated futures exchange or at an offshore venue. Once you know that, you can decide where to keep size, where to stay light and where you might prefer a specialist broker instead of a one-stop portal.

Different types of brokers are not only about asset menus. They are about how each slice of that menu is handled, who is on the other side of your tickets and how everyone in the chain earns their money. The closer you get to those details, the easier it is to pick broker relationships that actually fit the way you trade, rather than just the way a landing page is designed.

This article was last updated on: March 1, 2026