Andreas Halvorsen
Viking Global
Andreas Halvorsen is a prominent figure in the investment management industry, serving as the co-founder and CEO of Viking Global Investors, an American hedge fund firm based in Stamford, Connecticut. The firm is known for its expertise in long-short equity, long-only equity, and private equity strategies. Halvorsen's investment philosophy emphasizes rigorous fundamental analysis and a focus on long-term value creation, which has positioned Viking Global as a significant player in the financial markets. Viking Global Investors employs a multi-strategy approach, leveraging its deep research capabilities to navigate various sectors, including healthcare, financial services, and consumer cyclical industries. The firm actively manages a diverse portfolio, which has included notable positions in companies such as Apple Inc., Microsoft Corp., and DraftKings Inc. Their strategy involves a combination of position increases, reductions, and exits, reflecting a dynamic approach to market opportunities. Recent disclosures from Viking Global indicate a range of activities between November 14, 2025, and May 15, 2026, with a total of 200 reported moves. The firm has shown a pattern of significant position reductions and exits, particularly highlighted by a notable move involving Microsoft Corp, which saw a value of approximately $1.3 billion. This activity underscores Halvorsen's adaptive investment strategy in response to market conditions.
Biggest Losses
| Position | Reported Price | Last Price | Est. P/L | Return | Est. Value |
|---|---|---|---|---|---|
| $314.38 | $64.59 | -$694M | -79.5% | $180M | |
| $153.10 | $117.42 | -$35M | -23.3% | $115M | |
| $473.24 | $370.37 | -$111M | -21.7% | $398M | |
| $7.00 | $5.90 | -$18M | -15.8% | $94M | |
| $12.67 | $10.73 | -$11M | -15.3% | $62M | |
| $310.79 | $267.18 | -$158M | -14% | $969M | |
| $93.60 | $80.51 | -$49M | -14% | $301M | |
| $44.50 | $39.66 | -$55M | -10.9% | $453M | |
| $210.03 | $187.62 | -$66M | -10.7% | $557M | |
| $356.18 | $318.37 | -$73M | -10.6% | $615M | |
| $157.28 | $141.81 | -$75M | -9.84% | $686M | |
| $0.9193 | $0.8575 | -$4M | -6.72% | $50M | |
| $281.07 | $277.11 | -$3M | -1.41% | $191M | |
| $96.38 | $96.22 | -$2M | -0.17% | $1B |