I am demo examining Interactive Brokers' platform, and if I put in market orders, they will be filled with spreads of 10 pips on average (even for EURUSD wich generally has a spread of 0.5-1 pip)! Incidentally, I was implementing it through IDEAL PRO, so spreads should be reduced.
Is this how it is supposed to be? I hope it only occurs in demo accounts, this is very weird.
Edit: by the way, I have another question, what does Buying Power mean in the Account window, I see that the number is set by multiplying the total value of the account by 3.33....