Justin Schack is a Partner at Rosenblatt Securities. Schack heads the firm’s Market Structure Analysis group, which provides asset managers, exchange groups, proprietary trading firms, regulators and other clients with in‐depth intelligence on global market structure and the exchange industry. He is a frequent public speaker and widely quoted as an expert by major media outlets. Schack also has served on various industry bodies aimed at providing public‐policy feedback for regulators and legislators, including the Investment Company Institute working group that provided the US Securities and Exchange Commission with input for 2018 rule amendments mandating new institutional order‐routing transparency, as well as Nasdaq’s Intelligent Ticks Working Group, which proposed a flexible tick‐size regime for US equities in December 2019. He also has served on the Market Structure Advisory Committee of the Toronto Stock Exchange and TSX Venture Exchange, testified before the US Securities and Exchange Commission and prepared US Congressional testimony on market‐structure issues. In 2014 The Trade magazine named him to its list of the decade’s 100 most influential people in buy‐side trading. Prior to joining Rosenblatt in February 2008, Schack spent 14 years as a financial and public‐affairs journalist, most recently as Assistant Managing Editor of Institutional Investor, where he authored more than 20 cover stories during his eight years on the magazine’s staff. His work in journalism has been recognized with awards from the National Press Club, the Society of Professional Journalists and the American Society of Business Publication Editors. Schack holds a BA in history from Seton Hall University and an MA in history from the University of Connecticut.
