Jeremy Grantham

Robert Jeremy Goltho Grantham CBE (born 6 October 1938) is a British investor and co-founder and chief investment strategist of Grantham, Mayo, & van Otterloo (GMO), a Boston-based asset management firm. GMO is one of the largest managers of such funds in the world, having more than US $118 billion in assets under management as of March 2015. Grantham is regarded as a highly knowledgeable investor in various stock, bond, and commodity markets, and is particularly noted for his prediction of various bubbles. He has been a vocal critic of various governmental responses to the Global Financial Crisis. Grantham started one of the world's first index funds in the early 1970s.

In 2011 he was included in the 50 Most Influential ranking of Bloomberg Markets magazine.

Grantham was born in Ware, Hertfordshire and grew up in Doncaster. He studied Economics at the University of Sheffield. In 1966 he completed an MBA at Harvard Business School.

Grantham's investment philosophy can be summarized by his commonly used phrase "reversion to the mean." Essentially, he believes that all asset classes and markets will revert to mean historical levels from highs and lows. His firm seeks to understand historical changes in markets and predict results for seven years into the future. When there is deviation from historical means (averages), the firm may take an investment position based on a return to the mean. The firm allocates assets based on internal predictions of market direction.

Grantham has built much of his investing reputation over his long career by correctly identifying speculative market "bubbles" as they were happening and steering clients' assets clear of impending crashes. Grantham avoided investing in Japanese equities and real estate in the late eighties, as well as technology stocks during the Internet bubble in the late nineties.

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