Dr. Mohamed Abdulla El-Erian (born 1958) is the CEO and co-CIO of PIMCO, the world's largest bond investor with over US$1 trillion of assets under management as of 2010. El-Erian previously worked as the investment manager of Harvard Management Company, Harvard University's US$34.9 billion endowment fund, where he spent almost two years. On September 12, 2007, it was announced that El-Erian would return to PIMCO and take up his new roles starting January 1, 2008.
Harvard recruited El-Erian to fill the void left in September 2005 by the departure of 15-year investment chief Jack Meyer, who took almost three dozen Harvard officials to start a Boston-based hedge fund. El-Erian rebuilt the staff and guided the fund to a 23 percent gain in the fiscal year ended June 30, 2007, adding US$5.7 billion to the world's biggest university endowment.
El-Erian cited being closer to family one of the reasons of moving back to the West Coast and working for PIMCO. El-Erian is the son of an Egyptian diplomat and is fluent in Arabic, English and French. An economist, he attended St. John's School, Leatherhead, and after completing his A' Levels went on to receive his bachelor's and master's degrees from Cambridge University in England, and a second master's and a doctorate from Oxford University.