Andreas Halvorsen

Andreas Halvorsen runs hedge fund Viking Global Investors.A former Tiger Cub who once traded equities at Julian Robertson's Tiger Management, he struck out on his own with Viking in 1999.The Connecticut-based firm now manages more than $25 billion in assets.After flagship Viking Global hedge fund lost 4% net of fees in 2016, Halvorsen parted with CIO Daniel Sundheim and returned $8 billion to investors.In 2017 Viking's main hedge fund returned about 12% net of fees, driven by its long positions.