As long as you understand that that is not an ecn. If they are saying stuff explicitly related to fixed spreads then it's most likely you just get the functionality of currenex, but with market maker pricing behind (with all that that entails)
At the margin we risk splitting hairs here, as, while a true ecn allows you the possibility of avoiding crossing the spread (as other people can trade on your bid or offer) the simpl fact is that having this happen is a touch hit and miss, especially if what you have is one ecn only. If you spend a few million and build a nice whizzy aggregator then the chances of someone on ONE of the multiple ecns being happy to hit your price increases several fold. But with one, I would treat that eventuality very much as an added bonus rather than a regular thing. Most of the time you're gonna end up matching against a support price, and most e-commerce engines at the banks are still far more passive than active in the aggression blend they input to their auto-hedger, so what that translates to at the downstream level is that you are more likely, if, say you're working a 95 offer in a 93/95 market, to only get hit when an underlying support price engine actully goes 95 bid (at which point, you could probably have sold there at market anyway, so you are crossing their spread rather than the other way round).
All fine distinctions, and if I didn't point this out I think less than 0.1% of the membership here would have an inkling about this stuff - not their fault, it's just reasonably specialised info.
But if you really are desperate to trade shorter timeframes, and also to get the best pricing in order to minimise transaction costs in the long run, this is the level of info that makes the difference.
Hope that helps
GJ
