Executive Profiles

Thomas Peterffy: Chairman of the Board of Directors and Chief Executive Officer

Thomas Peterffy

  • Emigrated to the U.S. from Hungary in 1965.
  • Became a member of the American Stock Exchange in 1977 as an individual floor trader after working for 10 years as a computer programmer.
  • Pioneer in the advancement of options markets and electronic trading. Influential in the formation and structuring of the Boston Options Exchange (BOX) and the International Securities Exchange (ISE).

Earl H. Nemser: Vice Chairman and Director

Earl H. Nemser

  • Independent Consultant to the law firm Dechert LLP.
  • Specializes in commercial counseling and litigation with an emphasis on securities and commodities law.
  • J.D., magna cum laude, from Boston University School of Law.
  • B.A. in Economics from New York University.

Milan Galik: President and Director

Milan Galik

  • Joined Timber Hill in 1990 as a software developer.
  • Member of the Board of Directors of the Boston Options Exchange.
  • M.S. in Electrical Engineering, Technical University of Budapest.

Paul J. Brody: Chief Financial Officer, Treasurer, Secretary and Director

Paul J. Brody

  • Spent five years as an Asst. VP and Credit Manager for Mocatta Metals Corp. prior to joining Timber Hill in 1987.
  • Responsible for internal admin., finance, accounting, clearing, and banking relationships.
  • Oversees certain aspects of new product development.
  • B.A. in Economics, Cornell University 1982.

Thomas A. Frank: Executive Vice President and Chief Information Officer

Thomas A. Frank

  • Joined Timber Hill in 1985.
  • Responsible for the development and maintenance of the Company's trading, processing, and communications systems. Presently, he concentrates on development of brokerage systems.
  • Ph.D. in Physics from MIT 1985.

Lawrence E. Harris: Director

Lawrence E. Harris

  • Professor of Finance and Business Economics, and director of the Center of Investment Studies at the University of Southern California, where he holds the Fred V. Keenan Chair in Finance at the Marshall School of Business.
  • Serves as a director of the Clipper Fund and as the research coordinator of the Institute for Quantitative Research in Finance.
  • From 2002 – 2004, served as the Chief Economist of the U.S. Securities and Exchange Commission.
  • Ph.D. in Economics, University of Chicago 1982.

Gary Katz: Director

Gary Katz

  • Co-founder and former President & CEO of International Securities Exchange (ISE), the first all-electronic options exchange in the U.S. He is named as inventor or co-inventor on six patents relating to its proprietary trading system and technology.
  • Member of Board of Directors of The Options Clearing Corporation, 2000 – 2016.
  • Member of Executive Board of Eurex, 2008 – 2016.
  • Member of Board of Directors of Direct Edge Holdings, 2008 – 2014.
  • Managing Director of NYSE Options, 1986 – 1997.
  • Co-founder of the Options Industry Council.
  • M.S. with Distinction in Statistics and Operations Research, from New York University.

Richard Gates: Director

Richard Gates

  • Co-founded TFS Capital in 1997, an independent advisory firm dedicated to the construction of quantitative models designed to identify market inefficiencies.
  • As a portfolio manager at TFS, his focus is on trade execution, factor research, and business development.
  • Graduated from the University of Virginia in 1994 with a bachelor's degree in Chemical Engineering.

Kenneth J. Winston: Director

Kenneth J. Winston

  • Dr. Winston is Senior Risk Officer at Western Asset Management Company and a Lecturer in Economics at the California Institute of Technology.
  • Chief Risk Officer at Western Asset since 2008.
  • Chief Risk Officer at Morgan Stanley Investment Management, 2004-2008.
  • Member of the Board of Directors of the Institute for Quantitative Research in Finance.
  • Expert in areas including quantitative investment and risk management and the financial markets.
  • PhD in Mathematics, Massachusetts Institute of Technology.