Quote from Hurricane:
IB lists themselves as a liquidity provider so they can match trades between IB's customers.
Their commission is 0.2 pips each way with a minimum commission of $2.50. For USD accounts, the commission is calculated in the buying currency and immediately converted to USD at current rate.
Quote from local_crusher:
cannot link it.
go -> fees -> commissions -> choose forex (tab)
Quote from cstfx:
Again, for those slow on the uptake, you are quoting interactivebrokers fees. OP asked about interbankfx (IBfx).
The question again is:
Is interbank fx an ecn or a dealing desk?
based on their web page and choice of software, I am inclined to believe that they are a dealing desk broker.