ECN Broker

ECN brokers contrast with three other broker execution models: market-maker (MM, where the broker is counterparty and profits from spread + trader losses), Straight-Through Processing (STP, where orders pass through to liquidity providers but with broker spread mark-up), and Direct Market Access (DMA, similar to ECN but typically institutional-only).

What ECN execution provides:

• **No dealing-desk intervention**: the broker's role is connecting trader orders to liquidity-provider markets; the broker does not take the other side of trades • **Raw spreads from liquidity providers**: spreads reflect actual inter-bank pricing rather than broker mark-up; during peak liquidity (London-NY overlap) major pairs trade at sub-0.5 pip spreads • **Commission-based revenue model**: $3-7 per round-turn lot replaces spread mark-up, giving traders direct visibility into broker compensation • **Variable spreads**: because the spread is the actual liquidity-provider spread, it widens during low-liquidity periods (Asian session, news events) and tightens during high-liquidity periods • **Trade-size scaling**: ECN matching infrastructure handles both micro-lots and large institutional orders without slippage degradation

What ECN execution does not guarantee:

• Tier-1 ECN quality — the "ECN" label is used broadly; brokers labelled ECN range from genuine sub-15ms LD4-colocated infrastructure (IC Markets Raw, Pepperstone Razor) to nominal ECN routing with 60-150ms latency that doesn't actually deliver the execution advantages • Best-of-breed liquidity providers — broker quality depends on which liquidity providers the broker has access to; smaller ECN brokers may have access to inferior liquidity panels • Regulatory protection — "ECN" describes the execution model, not the regulatory status; some ECN brokers are unregulated

For EA evaluation, the distinction between Tier-1 ECN (IC Markets Raw, Pepperstone Razor, Tickmill Pro) and broader ECN matters because EA strategy edges depend on execution quality. Scalping strategies that work on Tier-1 ECN may break-even or lose on broader ECN due to latency and spread differences. Trend-following strategies are more spread-tolerant and may work acceptably on broader ECN accounts.

For verifying a broker's ECN claims: check (a) whether the broker discloses its liquidity providers in its terms or marketing, (b) whether commission and spreads are quoted separately (ECN) or only spreads (likely STP or market-maker), (c) whether news-event slippage exposes characteristic patterns (genuine ECN shows wider spreads but rare requotes; market-makers show artificial spread compression during normal times and requote spikes during stress).