Can't find this information on IB site.... anyone?
Quote from jeb9999:
It is in the TWS user manual under "Get Started" and "Cancel an Order".
http://www.interactivebrokers.com/en/software/tws/twsguide.htm
You should spend some time to read the user manual for any trading platform you intend to use.
AFAIK there are no explicit cancel fees on Globex. There are firm-wide cancel-to-fill ratios, however, so if your cancel-to-fill ratio get's high enough to trip IB's internal trigger, you will get a warning email from IB.Quote from Chronos.Phenomena:
Can't find this information on IB site.... anyone?

Quote from Kevin Schmit:
AFAIK there are no explicit cancel fees on Globex. There are firm-wide cancel-to-fill ratios, however, so if your cancel-to-fill ratio get's high enough to trip IB's internal trigger, you will get a warning email from IB. [/QUOTE