Hello, Yesterday, I went live with my new system... Everything worked fine and I made profits. Today, I get a message from IB relating that I made too much cancel/replace...The CBOT message/volume ratio is 50/1 and I made 132/1...A fine will incur if I continue... My question is: What are the different M/V ratios on CME? ICE? NYMEX? Are there exchange that are free of limitations? What is the amount of the fine? Thanks a lot for your help.