George Klavdianos is back. After leaving Balyasny's London office in December following reports of a $100m loss in a trading book he was leading, Klavdianos has resurfaced in a bigger fund and maybe a better job: he is now a senior portfolio manager at Millennium.Get Morning Coffee ☕ in your inbox. Sign up here.Millennium declined to comment on Klavdianos' arrival. He joined Millennium in London this month after three and a half years at Balyasny and six and a half years previously at Citadel. Klavdianos was Balyasny's head of event driven trading.