Quote from 5of7:
We asked the same question. The problem is that they all draw from different liquidity providers who in themselves have different markets.
So even if you could see their "internal" prices, who knows what they show us traders?!?!
The BIG BIG question is whether they create a market "just for you".
Here's how we answered the question.
We are autotraders. So we put the exact same autotrading systems on a LIVE account, and another mirrored on a DEMO account. Then took a look at the results.
The bottom line, your LIVE quotes WILL be different from your DEMO quotes. If you are flat, you probably won't see a difference.
BUT, if you are in a LIVE trade, that's when you see the difference.
If you are in a WINNING trade, strangely our spread got wider. How strange.
LOSING trades, suddenly our stop loss got hit a lot, lot more than in the DEMO trades. How strange.
Who did these "strange" things to us? It's not my place to bash brokers (many of which were in your lists), but let's suffice it to say...
we eventually had to come up with our own solution : - )
Trader 5of7 @ TheCollectiveFX.com