This method depended on close timing, and so Kerviel rarely left his desk. In the summer of
2006, while most of Delta One was on vacation, Kerviel was in Paris, making unauthorised
long and short bets that added up to €140 million, then unwinding them. Two different desk
managers formally noted Kerviel’s “reluctance to take vacations” on four occasions in 2006-
7. This was a possible sign that Kerviel was concerned about an audit in his absence, but the
information had “no concrete effect” on his hierarchical superiors