Born in Norway in 1961, Ole Andreas Halvorsen is a decorated former naval commando who became one of the most successful hedge fund managers of his generation. His youth was defined by intense discipline and leadership training: he graduated from the Norwegian Naval Academy and served as a leader of a highly specialized Norwegian SEAL team.

This military background, emphasizing integrity and disciplined execution under pressure, provided an unconventional yet powerful foundation for high finance. Halvorsen transitioned from the military to academia, graduating with a degree in Economics from Williams College in 1986, where he was also a member of the ski team. He cemented his financial credentials with an MBA from the Stanford University Graduate School of Business in 1990, where he was recognized as one of the school’s brightest students and a recipient of the Alexander A. Robichek Student Achievement Award in Finance. This rare blend of commando discipline and quantitative genius became the hallmark of his investment strategy.

After a brief stint in investment banking at Morgan Stanley, Andreas Halvorsen’s career trajectory changed forever in 1992 when he joined Tiger Management Corp., the legendary hedge fund founded by Julian Robertson. Halvorsen quickly distinguished himself, rising to become a senior managing director and a key member of the management committee.

In 1999, following the restructuring of Tiger Management, Halvorsen co-founded Viking Global Investors with two other Tiger Management alumni, David Ott and Brian Olson. They are part of the elite group of managers known as the 'Tiger Cubs,' who successfully launched their own billion-dollar funds using the rigorous, deep-analysis investment philosophy learned from Robertson. Under Halvorsen's leadership as CEO, Viking Global Investors has become one of the world's most successful hedge funds, consistently generating stellar returns by employing a bottom-up stock-picking strategy that focuses on deep fundamental analysis and finding stocks whose prices will diverge sufficiently to create a remunerative spread. The firm has grown to manage capital well in excess of $30 billion, securing Halvorsen's status as a preeminent financial powerhouse.

Andreas Halvorsen’s philanthropy is directed through the Halvorsen Family Foundation and primarily targets educational and cultural institutions that have shaped his life and beliefs. His giving emphasizes academic excellence and the arts.

He is a highly active and major donor to his alma mater, Williams College, where he serves on the Board of Trustees, ensuring the continuation of the liberal arts education that first brought him from Norway to the US. He also serves as a trustee for the Sterling and Francine Clark Art Institute, blending his financial acumen with support for the cultural sphere. His philosophy is one of targeted, responsible giving, leveraging his funds to support institutions that foster integrity, discipline, and intellectual rigor—the very values he credits for his success in the cutthroat world of hedge funds.

Andreas Halvorsen maintains the quintessential look of a successful, discreet, East Coast hedge fund titan. His style is professional, polished, and quietly expensive, characterized by impeccably tailored dark suits and a distinct avoidance of flashy displays. His aesthetic reflects the discipline of his military training—sharp, precise, and without distraction.

His lifestyle is centered in Darien, Connecticut, a favored enclave for the hedge fund elite. His luxury is private, manifested through exclusive real estate and the ability to maintain a rigorously focused career at the top of the financial world. His leisure pursuits, likely including skiing (as he was on the Williams College ski team) and private time with his family, reflect a preference for structured activity and high-quality, private downtime. The true symbol of his success is the consistently stellar performance of his multi-billion dollar fund, built on integrity, discipline, and quantitative skill.