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ECN is a marketing word before it is a description

Plenty of brokers call their accounts "ECN". The label implies direct access to a network where orders meet other orders. The reality ranges from true to decorative.

A genuine ECN-style setup routes client orders to a pool of liquidity providers, charges a commission, and passes through raw spreads. Many brokers use the label for accounts that have a commission and tight spreads but still route the orders internally.

There is no regulatory definition of the term in retail forex. Any account with a commission structure can wear it.

What to look at instead:

- Whether the broker discloses its liquidity providers
- How execution statistics are published, and by whom
- Whether slippage appears in both directions
- Whether the broker has a history of last look or order rejections on winning trades

A good test is to run the same strategy on an "ECN" account and on a plain standard account at the same broker. If the fills look identical in the cost profile, the label did nothing.

How much did the "ECN" label change the measured execution quality compared with the standard account?

Forum arguments about "market maker versus ECN" tend to go in circles because the labels are marketing categories, not technical ones.

A broker described as a market maker may take the other side of client trades, hedge some of them, or route others out. A broker described as ECN may still run an internal matching layer before anything hits an outside provider. Some brokers offer both account types on the same server and move clients between them based on trading behavior.

For scalpers the practical questions are a lot more specific:

- Does the account see the same price as other clients, or a personalized feed?
- Are there minimum holding times or order-frequency limits written in the terms?
- Is commission charged on top of a raw spread, and what is the average spread during the trader's active hours?
- What does the fill history look like on tight, fast trades?

None of those get answered by the word "ECN." They get answered by testing: small size, many trades, a log kept honestly.

A month of test data says more than a month of forum arguments.

What test would be most convincing as a way of telling brokers apart?