One thing that makes the JPMorgan trade look especially foolish is that it’s nearly the same sort of recklessness that AIG exhibited: selling derivatives against zero reserves. As Doug Kass, who heads the hedge fund Seabreeze Partners Management, explained: “Under the knowledge of Dimon, the JPM investment office sold massive amounts of CDS [credit-default swap] premium on large U.S. corporations in 2011. Like AIG, they accumulated a large amount of reported profits in the three-year period ending 2011. In an equally familiar manner, the principals of the London investment office were handsomely rewarded. And so was Dimon.”