I use Interactive Brokers for execution and clearing but am considering opening an account with Open E Cry. In part, because I can't stand IB's ripoff cancellation charges on Eurex, but also because it's obviously prudent to have a back up broker. Does anyone use two or more brokers for execution but arrange for one of the brokers to handle all of the clearing side? Maybe for just two brokers it's not such a big hassle, but if you used half a dozen different brokers you might want to use a single clearer. Suppose your connection with IB went down, and you had to hedge a position with an offsetting one through the other broker. If a single agent handled all the clearing maybe you could somehow offset the positions and not have to close out the two (offsetting) legs? And not have to stump up double margins? If it is even possible for IB to clear the Open E Cry executions, would the IB statements also include the other broker transactions on a single consolidated report? Thank you in advance for any replies on this exciting topic.