Loannisgkatzimas
Biography
Publications

Mr. Gkatzimas has significant experience in a wide range of finance-related issues including securities class actions, mergers and acquisitions, initial and secondary offerings, structured finance transactions, alternative investments, and on matters related to portfolio performance and attribution. His primary focus is on the valuation of complex securities and portfolios for both commercial litigation and regulatory matters. In matters related to securities litigation, Mr. Gkatzimas has analyzed class certification, market efficiency, loss causation, and appropriate methodologies for calculating damages. He has consulted on several notable cases including JDS Uniphase Corporation Securities Litigation and In re Apollo Securities Litigation.

Mr. Gkatzimas’s casework has spanned a variety of industries including financial institutions, pharmaceuticals, energy, and technology. Mr. Gkatzimas has also consulted on numerous valuation cases involving complex securities such as mortgage-backed securities, exotic options, swaps, structured debt and equity products, convertible securities, and employee stock options.

Prior to joining Brattle, Mr. Gkatzimas was a principal at Finance Scholars Group. He previously worked as a senior manager at Cornerstone Research, as a manager at Credit Suisse/First Boston, and as an analyst at Bear Stearns Asset Management. He holds a M.Sc. in Financial Mathematics from Stanford University, a Master of Financial Engineering from the Haas School of Business at UC Berkeley, and an MBA in International Finance from St. John’s University. He has taught courses in financial engineering and investments, and is currently a lecturer at the Haas School of Business, where he teaches in the undergraduate program.

Article
Target Date Funds: Economic, Regulatory And Legal Trends
December 8, 2017
Published in Law360
Report
Target Date Funds: Economic, Regulatory, and Legal Trends
September 2017
Published by The Brattle Group, Inc.
Article
Securities Class Actions: Trading Models to Estimate Individual Investor Trading Activity and Aggregate Damages
May 2017
Published by The Brattle Group, Inc.