To gryat :
Please don’t bite back at In2Blues. He has taken the trouble to reply to you and is genuinely trying to help you.
Now Tonymand has made an excellent start in answering your question.
Most people use “bucket shop” or dealing desk brokers. Here you [U]pay [/U]a spread and the broker sets up the prices for you - you are not trading in the real interbank world but in the broker’s own price world which is different from the interbank price world.
Your order is warehoused together with all the other orders and your broker sets up the prices you buy or sell at.
The broker gets his profits by charging you a spread - usually around 3/4 pips for the 4 majors, higher for exotic currencies.
The bucket shop brokers can play tricks on you :
-freeze your internet connection.
-reject your order and offer you a new on (at a loss to you) “requoting”.
-trade against you and chase after your stop loss setting.
-email you to tell you that your profit trades were invalid.
-take money out of your account for all sorts of things.
-and much more.
An ECN broker is considerably more honest. He charges you a genuine commission that is taken from your funds. The pips then are all yours (sometimes charged 1 pip).
But the big thing with an ECN is that your trade directly with the interbank market and not in some broker’s artificial world. you see the bids and asks and you can operate directly on these.
To see an example of an ECN website and see the difference you could
look at …say…
EFX: Experience Forex Freedom
[U]example only.[/U]
But there are many ECN brokers.