The Chickenshit Club by Jesse Eisinger (pg. 27)

Enron was not a volatile trading shop, Skilling had told the public. Ruemmler brought on Delainey to destroy that notion, and he did. He testified that Enron’s wholesale energy unit’s trading gains and losses swung wildly. The unit had lost $551 million in one day in late 2000, a sum that exceeded the unit’s entire profits from the previous year. Earlier that same month, it had made $485 million in a day.