be before jumping to any conclusion, do you know if these were prop type traders and got a piece of the profits they generated? If so, they should be partially liable as well as the firm for not surveilling the activity. IMO most of the reason for this type of behavior is because the traders have all the incentive to cheat to generate a bonus w/o recourse.
If the sec investigated all the trading that goes on daily, they would probably find 10,000 cases per day of this
These guys had a POSITIVE end of month balance with CME Group and thought it would fly...LOL...We are not talking BATS here.