Ellington's senior partners have extensive experience investing in fixed income and mortgage-backed securities markets. The founding partners created many of the securities and helped to develop many of the markets that Ellington actively trades today. The firm is led by:

Michael W. Vranos, Founder and Chief Executive Officer

Mr. Vranos is the founder and Chief Executive Officer of Ellington. Mr. Vranos founded Ellington in December of 1994 to capitalize on distressed conditions in the MBS derivatives market. Until December 1994, Mr. Vranos was the Senior Managing Director of Kidder Peabody in charge of RMBS trading. Mr. Vranos began his Wall Street career in 1983, after graduating magna cum laude, Phi Beta Kappa with a Bachelor of Arts in Mathematics from Harvard University. He currently serves on the Board of Directors of Boys and Girls Harbor, the East Harlem School, Hedge Funds Care, and the Stamford Shelter for the Homeless. Mr. Vranos was raised in Ellington, Connecticut.


Laurence Penn, Vice Chairman

Mr. Penn is a Vice Chairman of Ellington, where he helps oversee many functions of the firm, including trading, risk management, and new business. In Ellington's earlier years, Mr. Penn was the senior portfolio manager primarily responsible for investments in agency RMBS and was also responsible for monitoring and updating the risk measures associated with all MBS assets in the funds. Prior to joining Ellington in 1995 shortly after its inception, Mr. Penn was at Lehman Brothers where he was a Managing Director and co-head of CMO origination and trading. Mr. Penn specialized in the trading and risk-management of CMO derivatives. Prior to trading CMOs and CMO derivatives, Mr. Penn was in charge of Lehman Brothers' structured transaction modeling group from 1987 to 1990, where he was responsible for the structuring, modeling and computer system design for MBS and ABS. Mr. Penn began his career at Lehman Brothers in 1984, after receiving a Master of Advanced Study in Mathematics from Cambridge University, where he studied as both a National Science Foundation and Winston Churchill Fellow. Mr. Penn graduated summa cum laude, Phi Beta Kappa with a B.A. in Mathematics from Harvard University.


Richard Brounstein, Vice Chairman

Mr. Brounstein is a Vice Chairman and the Director of Investor Relations at Ellington. Prior to joining Ellington in 2000, Mr. Brounstein was the Managing Director responsible for the Fixed Income Securities division at Société Générale Securities Corporation, later renamed S.G. Cowen Securities Corporation. In this capacity, Mr. Brounstein was responsible for supervising all aspects of risk management, market making, proprietary trading, distribution and finance related activities. In addition to his direct responsibilities for the Fixed Income Division, Mr. Brounstein was a member of the Risk Management committee at Société Générale Securities Corporation. Prior to joining Société Générale Securities Corporation, Mr. Brounstein was the Managing Director responsible for the Mortgage-Backed Securities Division at the Union Bank of Switzerland. Later he was given responsibilities for the supervision of distribution/placement of all Fixed Income Securities. Prior to joining the Union Bank of Switzerland, Mr. Brounstein worked with Mr. Vranos and other Ellington employees at Kidder Peabody. Mr. Brounstein received an M.A. from Columbia University and a B.A. from Fairleigh Dickinson University.


Olivier Cojot-Goldberg, Vice Chairman

Mr. Cojot-Goldberg is a Vice Chairman of Ellington, where he helped develop Ellington’s MBS/ABS credit capabilities and Ellington’s structured products businesses. He currently focuses on business development efforts across the organization. Throughout his career, Mr. Cojot-Goldberg has specialized in structured products and in sectors that have fallen out of favor, and in newer, less well-understood asset classes. Prior to joining Ellington in December 1994, Mr. Cojot-Goldberg was the Managing Director in charge of whole loan-backed CMO origination and trading at Kidder Peabody, reporting directly to Mr. Vranos. Mr. Cojot-Goldberg began his career at Kidder Peabody in 1988, after graduating seventh in his class from the California Institute of Technology in 1987 and receiving his Master of Science degree in Electrical Engineering from the same institution the following year.


John Geanakoplos, Managing Director

Professor Geanakoplos is a Managing Director at Ellington, where he is the Head of Research and Development and is responsible for the design of computer models to evaluate and hedge the firm's portfolio. Professor Geanakoplos is largely responsible for the theoretical framework of Ellington's proprietary prepayment model and interest rate model. From 1992 until joining Ellington in 1995, Professor Geanakoplos was a Managing Director of Kidder Peabody, where he was head of the Fixed Income Research Department. In this capacity, he led the design of the firm's proprietary MBS analytical systems. He became a full Professor at Yale University in 1986, at the age of 30, and is currently the James Tobin Professor of Economics and Director of the Cowles Foundation for Research in Economics. He was elected a fellow of the Econometric Society in 1990 and of the American Academy of Arts and Sciences in 1999. He was awarded the Samuelson Prize in 1999, and was awarded the first Bodossaki Prize in economics in 1995. In 1990 and again in 2000, he directed the economics program at the Santa Fe Institute, where he remains an external professor. Professor Geanakoplos graduated summa cum laude, Phi Beta Kappa with a B.A. in Mathematics from Yale University and received an M.A. in Mathematics and a Ph.D. in economics from Harvard University.