The Tiger Cub network — made up of hedge funds connected to the late billionaire Julian Robertson's legendary Tiger Management — has added notable new launches in recent years. Neither the old guard nor the new was able to escape March's pain, however. Funds run by former executives and investors of hedge funds Viking Global and Lone Pine lost money last month, according to investor updates and people close to the managers. Ning Jin's Avantyr Capital Partners , for example, was down 0.5% for