here is the sample calculation from the IB page:
"USD 50,000 daily volume for EUR = USD 2.50"
So to extrapolate that to $1M traded (for under $1B monthly size, it gets better if you trade a lot)
IF $50,000 traded = $2.50 commish one way
IF $50,000 x 20 = $1M traded
THEN $2.50 commish x 20 = $50 one way
THEN $50 x 2 for R/Trip = $100
So yes, I was off by $20 per R/T or $10 per side - my point is still valid, this is still 1/2 cost of fixed spreads even at 1 Pip and it is a lot less than your typical 2 - 3 pip spreads on majors.
Any problems with this? Correct me if I am wrong, I am open-minded about it.
"USD 50,000 daily volume for EUR = USD 2.50"
So to extrapolate that to $1M traded (for under $1B monthly size, it gets better if you trade a lot)
IF $50,000 traded = $2.50 commish one way
IF $50,000 x 20 = $1M traded
THEN $2.50 commish x 20 = $50 one way
THEN $50 x 2 for R/Trip = $100
So yes, I was off by $20 per R/T or $10 per side - my point is still valid, this is still 1/2 cost of fixed spreads even at 1 Pip and it is a lot less than your typical 2 - 3 pip spreads on majors.
Any problems with this? Correct me if I am wrong, I am open-minded about it.

