- Market Makers (Dealing Desk / B-book) are the counterparty to your trade — they profit when you lose, which creates a structural conflict but enables tight fixed spreads, zero commissions and micro-lot accessibility for beginners
- STP brokers route orders directly to liquidity providers without manual intervention, eliminating the dealing-desk discretion but typically still warehousing some risk internally on a hybrid basis
- True ECN brokers place orders into a multi-participant electronic order book with raw variable spreads (often 0.0–0.3 pips on EUR/USD) plus a transparent commission per round-turn lot
- Most retail brokers in 2026 operate hybrid A-book / B-book models — the regulator does not require disclosure of which clients are warehoused and which are routed externally
- Spread + commission economics matter more than the label: a Market Maker with 1.0 pip and zero commission costs the same as an ECN with 0.2 pip and $7 round-turn commission on a 1 lot trade
- Scalpers, news traders and high-volume strategies generally need ECN-style execution; long-term position traders and beginners are often better served by Market Maker accounts with no commission and protected micro lots
Why This Question Matters Before You Pick a Broker#
Every retail forex broker uses some combination of three execution models. The model determines whether the broker makes money when you lose, what your effective per-trade cost actually is, how your stop loss is filled in fast markets, and whether your strategy will produce the same results in live trading as it did in backtesting.
The marketing labels — ECN, true ECN, NDD, STP/ECN, Pro account, Raw spread — are not regulated definitions. Two brokers using the same word can route your orders in completely different ways. This guide unpacks what the words actually mean, what the underlying mechanics look like, and how to verify a broker's claim before sending money.
The Three Pure Models#
| Model | Counterparty | Spread Type | Commission | Conflict of Interest |
|---|---|---|---|---|
| Market Maker (Dealing Desk / B-book) | The broker | Fixed or fixed-variable | Usually zero | High (broker wins when client loses) |
| STP (Straight-Through Processing) | One or more liquidity providers | Variable | Usually zero or low | Low to medium (depends on routing) |
| ECN (Electronic Communication Network) | Other ECN participants | Raw variable | Always present, per lot | Low (broker is paid via commission, not spread mark-up) |
Understanding the pure cases first is essential because the hybrid models that dominate the actual market are combinations of these three.
Market Maker (Dealing Desk / B-book)#
A Market Maker is exactly what the name says: the broker makes the market for you. When you click Buy on EUR/USD, the broker quotes a price, fills you internally, and is now the counterparty to your trade. The broker has not gone to any external venue. The broker's books are now short EUR/USD by your position size.
The broker has three options:
- Hold the risk — keep the short position on its own books, hoping you lose the trade
- Hedge externally — open an offsetting trade with a Tier-1 bank or other liquidity provider, locking in the spread mark-up as profit
- Net against opposite client flow — match your buy with another client's sell internally
Most professional Market Makers do all three depending on the client's profile and the size of the position.
How Market Makers Profit
A Market Maker has three primary revenue streams:
- Spread mark-up. The broker quotes a wider spread than the underlying interbank price. The difference is captured on every round-turn trade.
- Client losses on B-booked positions. When the broker holds the risk and the client loses, the loss flows directly to the broker's P&L.
- Swap differentials. The broker often charges or pays a swap rate that differs slightly from the actual overnight financing cost in the interbank market.
Industry-wide retail-trader loss rates published under ESMA, FCA and ASIC disclosure rules sit between 70% and 85% of accounts. For a Market Maker holding the risk, that is a structurally favourable distribution. This is the source of the conflict-of-interest critique — and it is real.
When Market Makers Are the Right Choice
A Market Maker is not automatically the wrong broker. The model has genuine advantages:
- Zero commissions make the cost structure simple
- Tight fixed spreads are predictable for backtesting and account-management
- Micro and nano lot support without minimum trade size restrictions
- Beginner-friendly account types with built-in risk controls (e.g. negative balance protection)
- Smaller minimum deposits ($5–$50 typical, vs $200–$1,000+ for ECN tiers)
- Stable execution during normal market conditions, with the broker absorbing minor liquidity gaps
The model breaks down for scalpers (where the spread mark-up is a significant fraction of the target profit), news traders (where dealing-desk discretion historically produced re-quotes and slippage), and high-volume professionals (where the tiny per-trade edge of an ECN compounds across thousands of trades).
How to Recognise a Market Maker
Look for:
- "Standard" or "Classic" account type with no commission and fixed or fixed-variable spreads quoted from 1.0 pip on EUR/USD upward
- Negative balance protection offered to retail clients (regulator-required in EU/UK/AU, optional elsewhere)
- The Order Execution Policy document explicitly stating the broker "may act as principal" or "may execute as counterparty"
- A licence under a regulator that permits dealing-on-own-account (CySEC, FCA, ASIC, DFSA all permit this)
The phrase "deals on own account" in the broker's regulatory licence is the formal disclosure that the broker is authorised to act as counterparty.
Straight-Through Processing (STP)#
STP brokers route every client order directly to a liquidity provider without dealing-desk intervention. There is no manual quote review, no internal warehousing on those orders, no human between the click and the fill.
The "straight-through" part refers to the technical pipeline: the order goes from the client's terminal → broker's bridge → external LP → executed → confirmation back. The broker's role is technical aggregation, not market-making.
How STP Brokers Profit
STP economics are different:
- Spread mark-up. The broker takes the raw spread from the LP, adds a small mark-up (typically 0.1–0.5 pips on EUR/USD), and quotes the marked-up spread to the client. The mark-up is the broker's revenue per trade.
- Volume rebates from LPs. Some liquidity providers pay the broker a small rebate for the order flow.
- Optional commission. Some STP accounts charge a small per-lot commission instead of marking up the spread.
The broker is not the counterparty to the trade. The broker does not profit from the client losing. The conflict of interest is materially reduced — but the model is also more expensive to operate, which is why true STP accounts typically have higher minimum deposits and tighter spreads only at higher account tiers.
Hybrid STP
In practice, almost no retail broker runs pure STP across the entire client book. The economics do not support it for low-deposit, high-attrition retail accounts. The dominant pattern is:
- Profitable / large / professional clients are A-booked (routed externally)
- Unprofitable / small / unsophisticated clients are B-booked (warehoused internally)
The broker's risk-management algorithm classifies each account in real time and may move an account between books based on demonstrated profitability. This is legal under EU, UK and AU regulation as long as the broker discloses execution on principal in its Order Execution Policy. Most do, in language that retail clients rarely read.
The practical implication: passing the broker's profitability filter often means the broker stops B-booking your trades. From the trader's perspective the price quotes look identical, but the conflict-of-interest calculus has changed.
ECN (Electronic Communication Network)#
An ECN is a multi-participant electronic order book. Banks, hedge funds, market makers, brokers, and other ECN users post bids and offers anonymously into a central limit order book. When your order arrives, the ECN matches it against the best available counterparty in the book at the time, charges a fee, and reports the fill.
The defining characteristics:
- Raw variable spreads. EUR/USD typically 0.0–0.3 pips during London/NY overlap, widening to 0.5–1.5 pips during low-liquidity sessions and during news.
- Transparent commission. Charged per round-turn lot (e.g. $3.50 per side / $7.00 round-turn on 1.0 lot — varies by broker and tier).
- Anonymous matching. The broker cannot front-run or warehouse your orders because the broker is not the counterparty.
- No re-quotes. The order either fills at the available price (with potential positive or negative slippage) or it doesn't.
- Aggressive scalping is allowed. Most ECN environments support tick-level strategies that Market Makers explicitly prohibit in their terms.
How ECN Brokers Profit
The broker charges the commission on every trade. Spread mark-up is typically zero or near-zero — the broker passes the raw ECN price through to the client. There is no inventory risk because the broker is not on the other side of the trade.
This is the cleanest economic model from a conflict-of-interest standpoint. It is also the most expensive model for the broker to operate, which translates into:
- Higher minimum deposits ($200–$2,000+ depending on broker)
- Higher minimum trade size on some accounts
- More technical onboarding (some ECN platforms require additional configuration)
"True ECN" vs "ECN-Style"
The phrase "true ECN" tries to distinguish brokers that connect to a recognised institutional ECN venue (like LMAX, Currenex, Hotspot FX, Integral) from brokers that simply offer raw spreads with commissions and call it "ECN" while still routing through an STP-style aggregator.
Both can offer good execution. The difference is structural: a true ECN gives you anonymous order-book matching with named institutional counterparties; an ECN-style aggregator gives you the commercial appearance of ECN through a different technical path.
For most retail traders the practical difference is small. For institutional traders running latency-sensitive strategies, it can matter materially.
The Hybrid Reality (What Most Brokers Actually Do)#
Most major retail brokers in 2026 operate hybrid books:
- Multiple account types with different execution models on the same broker
- A "Standard" or "Classic" account → typically Market Maker / B-book with spreads from 1.0 pip
- A "Pro" or "Raw" or "ECN" account → typically STP/ECN with raw spreads + commission
- Internal classification routes orders book-by-book on the same account type
- External liquidity aggregation for hedging the warehoused exposure when needed
A trader on the Standard account at a hybrid broker is effectively trading against the broker. A trader on the Pro/Raw account at the same broker is effectively trading against external liquidity. Same broker, same login, two completely different counterparty structures.
This is the single most important fact about modern retail forex execution and the most frequently obscured one.
How the Cost Math Actually Works#
The label is less important than the all-in per-trade cost. Compare on an apples-to-apples basis using one round-turn 1.0 lot on EUR/USD:
| Model | Spread (pips) | Commission (round-turn) | All-in Cost (1.0 lot) |
|---|---|---|---|
| Market Maker — Standard | 1.0 | $0 | $10.00 |
| Market Maker — Tighter Tier | 0.6 | $0 | $6.00 |
| STP / Hybrid — Pro | 0.4 | $4.00 | $8.00 |
| ECN — Raw + Commission | 0.1 | $7.00 | $8.00 |
| ECN — Tier-1 Volume Discount | 0.0 | $5.00 | $5.00 |
Two important observations:
- The lowest all-in cost is not always the ECN account. A Market Maker with a tighter standard spread can match an ECN's all-in cost on a per-trade basis.
- The strategy compatibility is more important than the absolute cost. A scalper targeting 5 pips per trade is paying ~10–20% of every winning trade in cost on a 1.0 pip Market Maker, vs ~2% on a 0.0 pip ECN. A swing trader targeting 100 pips per trade barely notices either.
Strategy → Model Matrix#
| Strategy | Recommended Model | Why |
|---|---|---|
| Beginner — small live account | Market Maker (Standard) | Zero commission simplicity, micro lots, predictable cost, beginner-protections |
| Position trading (multi-day to multi-week) | Either — choose on swap rates | Per-trade cost is small fraction of target P&L |
| Swing trading (multi-hour to multi-day) | Hybrid Pro / Raw account | Lower per-trade cost on higher trade frequency |
| Day trading (intra-day) | ECN / Raw spread | Spread cost compounds across many trades per day |
| Scalping (sub-minute) | True ECN | Tick-level execution, no scalping restrictions, lowest spread |
| News trading (NFP / FOMC / CPI) | ECN / Raw spread | No re-quotes, transparent variable spread, faster fills during volatility |
| Algo / EA running | True ECN with API access | Latency, reliability, slippage transparency |
Verifying a Broker's Claim Before You Open an Account#
Marketing language is unregulated. The legal disclosures are what bind the broker. Run this checklist:
- Read the Order Execution Policy (every regulated broker is required to publish one). Look for the phrases "execute as principal", "deal on own account", "internal matching", "internalisation". These are the formal admissions of Market Maker / B-book activity.
- Check the regulatory licence for the entity you'll be onboarded to. Search the FCA, CySEC, ASIC or DFSA register and read the permitted activities. "Dealing in investments as principal" = Market Maker permitted. "Dealing in investments as agent" only = STP/ECN-style only.
- Read the Risk Disclosure Statement for the language describing the conflict of interest. Most regulators require this to be explicit.
- Compare the spread + commission across account types at the same broker. The cost gap between the Standard and the Raw account is the implied B-book mark-up the broker captures on the Standard account.
- Test execution on a small live account before scaling. Demo accounts run on idealised execution servers and do not predict live execution behaviour reliably.
- Look for the regulator-required loss disclosure on the broker's homepage. The number — typically 70%–85% of retail accounts losing money — applies across all account types and tells you the population the broker is serving.
- Verify the published list of liquidity providers if the broker claims STP/ECN routing. A genuine STP/ECN broker will name its providers (or at minimum disclose the type — Tier-1 banks, prime broker, named ECN venue). A vague claim of "deep institutional liquidity" without specifics is a warning sign.
Tip: The single most useful piece of evidence is the broker's own Order Execution Policy. Save it as a dated PDF when you open the account. If terms change later, you have the original disclosure to reference.
Common Misconceptions#
"ECN is always better than Market Maker"
False. ECN is structurally better aligned with the trader's interest, but a tight-spread Market Maker can produce the same or better all-in cost on lower-frequency strategies, especially for traders with smaller accounts where ECN minimum deposits and minimum trade sizes are barriers.
"Market Makers manipulate prices"
In a regulated jurisdiction, a Market Maker is permitted to quote its own price for its own product, but it is not permitted to manipulate the underlying market. The MiFID II / FCA / ASIC framework requires best execution and audit trails. The far more common pattern is dealing-desk discretion during fast markets (re-quotes, asymmetric slippage on stops) — which is legal but worth knowing about. Strategies whose edge depends on tight execution should not run on dealing-desk accounts.
"STP brokers don't have conflicts of interest"
False in practice. Most STP brokers are hybrid and B-book a portion of the client book based on internal classification. The conflict is reduced compared to a pure Market Maker but rarely eliminated.
"True ECN brokers have no spread mark-up"
Mostly true on the spread itself but the broker still profits — through the per-lot commission. The economic outcome for the trader is the same: a cost is paid on every trade. The transparency is higher because the cost is itemised rather than embedded.
"Higher leverage means a worse broker"
Unrelated to execution model. Leverage is a regulator-set or broker-set risk parameter. EU/UK/AU cap retail leverage at 1:30; offshore brokers offer 1:500 or higher. The execution model is independent of the leverage on offer.
Bottom Line#
There is no single "best" execution model. There is a best model for your strategy and capital.
- Beginners with under $1,000: tight-spread Market Maker accounts solve the practical problems (no commission, micro lots, beginner protections) at a per-trade cost that is irrelevant relative to the strategy's edge.
- Day traders with $1,000–$10,000: hybrid Pro/Raw accounts at the same brokers usually offer the best balance of cost and accessibility.
- Scalpers, news traders, algos, professionals: true ECN with named liquidity providers and per-lot commissions.
Verify the broker's actual model from its Order Execution Policy, not from the homepage marketing. Verify the all-in cost from the spread + commission math, not from the label. Verify the broker's regulatory permissions from the regulator's register, not from the broker's "About Us" page.
Risk Warning: This article is educational analysis and not investment advice. Forex and CFD trading involves substantial risk of loss. Regulator-required disclosures across the major retail jurisdictions show 70%–85% of retail accounts lose money. Choosing the right execution model improves outcomes only when combined with disciplined risk management, an appropriate strategy, and realistic position sizing.
Compare Real Account Types Side-by-Side: Open a free XM account to see the difference between a Standard account (no commission, 1.0 pip spreads, beginner-friendly) and an Ultra Low / Zero account (raw spreads + commission, suited for scalping and high-frequency strategies). CySEC-regulated, segregated client funds, $5 minimum deposit, $30 no-deposit bonus, MT4 and MT5 supported.
Sources and References#
- ESMA — MiFID II Best Execution requirements (Article 27 of Directive 2014/65/EU): esma.europa.eu/policy-rules/mifid-ii-and-mifir
- Financial Conduct Authority — Best execution and payment for order flow (Policy Statement PS17/19): fca.org.uk/publication/policy/ps17-19.pdf
- CySEC — Directive on the safeguarding of client funds: cysec.gov.cy/en-GB/legislation
- ASIC — Report 482: Compliance review of the retail OTC derivatives sector: download.asic.gov.au/media/4042496/rep482-published-12-may-2016.pdf
- Bank for International Settlements — Triennial Central Bank Survey: bis.org/statistics/rpfx22.htm
- LMAX Exchange — Anonymous central-limit order book methodology: lmax.com/exchange
- Investment Industry Regulatory Organization of Canada (IIROC) — Order Protection Rule: ciro.ca
Related Reading#
- Best Regulated Forex Brokers 2026 — picking a broker by regulatory tier
- Lowest Spread Forex Brokers 2026 — the spread side of the cost equation
- How to Choose a Reliable Forex Broker — the broader checklist beyond execution model
- XM Account Types Standard vs Ultra Low — a real-world example of Market Maker vs Raw account type at the same broker
- Are Forex Prop Firms Legit in 2026? — how execution model differences also matter on funded accounts
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