Quote from squeeze:
LIFFE has done something similar. A lot of arcade traders using auto-spreaders were hit with big bills because they did not register and were sending vast numbers of messages to the exchange.
However, I think there is a limit set so that anyone sending less than a certain number of messages per day does not have to register. The LIFFE approach is fair as small automated traders and manual traders are not affected but traders sending thousands of messages a day without doing much volume get hit with big bills. The bandwidth abusers have been reigned in without anyone affecting anyone else.
I don't know if it would be practical to register every single person using some sort of automated order entry system.
There would also be a danger in adding these sort of costs that an exchange would just end up driving away business to competitors. For instance, I am sure Eurex US would love to have some of the CME's automated volume for it's new index products.
The problem with the new IB fees are that they do not really reflect the new exchange rules and are going to disproportionately hit a lot of smaller traders whether automated or manual. I am surprised as this is the first thing I have seen IB do that is likely to really loose them customers.
Giving people a daily allowance of 25 free cancel/modifies per day per product would be a good way to solve the problems for small traders. Beyond this the ratio of messages to trades should ideally reflect the exchange limits.
This is a good solution for IB to institute. They should allow so many cancel/modifie orders per day before they charge. CME costs are way to high now for small traders. EurexUS is not bad for traders holding any length of time.