Jamie Dimon just did a conference call in which he mentioned something called the “Dimon Principle,” but he did not define it, so I will propose a definition, which is: If you are going to have a Slytherin alumnus running a $375bn book full of snakes and CDX and TIPS (??) and things, and someone notices and the press starts lobbing in guesses about it, and Congress starts fretting about it, and you say things like “this is a tempest in a teapot,” you have to NOT LOSE TWO BILLION DOLLARS ON IT. From JPMorgan’s just-filed Q:

Read more on Dealbreaker.