A system and method for regulating order entry based on an acceptable slop range for a trading strategy are described. According to one example embodiment, a trader may define an acceptable slop range for a trading strategy as a percentage. The trader may also define a variable to associate with the...http://www.google.de/patents/US7672898?utm_source=gb-gplus-sharePatent US7672898 - Regulating order entry in an electronic trading environment to maintain an actual cost for a trading strategy