Erik R. Sirri

Professor of Finance (Emeritus),
Babson College;
Former Director, SEC Division of Trading and Markets;
Senior Advisor, Cornerstone Research

For more information, contact:

  • Narayanan “Nari” Subramanian
  • Laura E. Stiglin
  • Yan Cao

or any member of our senior staff.


Erik Sirri consults with clients on matters related to asset management, including robo-advising, mutual funds, and exchange-traded products; securities trading, including high-frequency trading; and financial institutions, with a special emphasis on broker-dealer issues. Professor Sirri has extensive experience with regulatory enforcement matters.

Professor Sirri’s research focuses on the interaction of securities law and finance, investment management, securities market structure, and capital markets. From 2006 through 2009, Professor Sirri was director of the Division of Trading and Markets at the U.S. Securities and Exchange Commission (SEC), where he was responsible for matters related to the regulation of stock and options exchanges, national securities associations, brokers, dealers, clearing agencies, and credit ratings agencies. He served as chief economist of the SEC from 1996 through 1999, and was an assistant professor of finance at Harvard Business School from 1989 to 1995.

Professor Sirri’s writings have been published in the Review of Financial Studies, the Journal of Finance, the Journal of Financial Markets, the Journal of Financial and Quantitative Analysis, and other journals and books. He has served on the boards of securities exchanges, mutual funds, industry associations, and foundations. Professor Sirri has consulted for securities firms, stock exchanges, mutual fund companies, issuers, and information vendors on a variety of regulatory and business matters.


In re BlackRock Mutual Funds Advisory Fee Litigation


Excessive Risk: Corporate and Municipal Bond Funds


Mortgage-Backed Securities and Collateralized Debt Obligations


SEC Proceeding Regarding Bond Fund Disclosures

  • Financial Market Policy Development & Research Symposium, McCombs School of Business, University of Texas at Austin, 12 August 2020
  • Antitrust and Regulation in Financial Markets: Navigating New Challenges, Cornerstone Research and the NYU Pollack Center for Law & Business, 19 May 2016
  • “Spoofing and Manipulation: A Primer for Healthy Trading Practices,” Cornerstone Research and Jones Day, 7 December 2017