Looks more or less in line.
>ok, I have seen the sorce: it really has position size of 125000
>so one would need an appropriate buying power, or am I missing
>something?
This is how it's supposed to be. One Forex Futures contract is worth
$125,000, so the other component in the pair is Forex spot of the
equivalent value. IB leverage on the Forex spot is 20:1, which means
that you need about $6250 to have the $125,000 buying power. IB margin
on the Forex future is about $2,500 or so. So, altogether, you need
about $9,000 to trade this particular pair.