It seems our communication is being over-interpreted. Clarification time:
1) NO ONE HAS BEEN CHARGED A SINGLE PENNY. The only clients who will be ever affected by our system load policy are those who refuse to improve their highly inefficient systems and continue to submit hundreds of thousands of useless and wasteful orders, and never actually interact with the normal NBBO.
2) The email was intended for HEAVY ABUSERS. It was intended for people, most using automated systems, who submit 200'000 orders and do 2 trades. Or they send in orders on 10000 stocks in the pre-market, all orders 10% from the last sale, hoping to catch someone making a stupid error, not making the exchange cut-offs for a mistrade request, thereby gaining a low/no risk 10% on the trade.
3) It seems we sent it to an overly wide audience. We were targeting users with order/exec ratios in excess of 1000+ range, and these users can easily improve their quoting algos to reduce stupid order modifications, they just need to have a reason to. We have a few users whose order/trade ration is over 20K:1. This slows down the system for everyone else.
Clients who send in 200 orders and get 10 fills are not the audience.
Clients who submit 200'000 orders but trade 100'000 times are not the audience (we configure special systems that allow them to act without degrading the overall performance).
We care about the heavy and INEFFICIENT users. Some of these have contacted IB and worked with our API team to improve their quoting. We have not seen enough data to make a statistically significant statement, but the cocktail napkin calculation suggests our clients can reduce order load by 80% without missing any trading opportunities.
4) This was a POLICY email, designed to lift awareness. It probably went to too wide an audience. If you don't send in at more than 2000 orders in a day, you probably should not have even received the communication.
We will contact the worst offenders and work with them to get their system utilization to more manageable levels. I dont expect any problems for anyone who is willing to respect the intent of our policy.
I hope this clarifies the situation.