KOR Group LLC is a SaaS based analytics and trading compliance firm specializing in venue and algorithmic level trading performance and in-depth market analysis.  Today’s trading markets are highly complex and you cannot afford to overlook the latest changes in market policy that affect your business.

We pride ourselves on our independent and un-conflicted nature which is why our clients include major stock exchanges, alternative trading systems, asset managers, trading firms, US government agencies and more.

Our products and services include:

Market Structure Insights – A monthly publication including:

  • Exchange Self-Regulatory Organization “SRO” rule filings summarized
  • SEC Rule 605 and 606 data
  • FINRA ATS data
  • US, European & Canadian volume, notional and average trade size
  • Maker/Taker Fee schedules
  • Stock Loan information provided by our strategic partner S3 Blacklight
  • Congressional coverage
  • In-depth coverage of SEC speeches and events
  • In house and guest editorials
  • And much more.

Comprehensive visual database including:

  • Searchable SRO Filings including comment letters
  • Volume data
  • 605 and 606 analysis
  • Maker/Taker Fee schedules
  • FINRA ATS Data

Best Execution analysis and accreditation

  • Buy-side analysis and accreditation
  • ATS analysis and accreditation
  • Market Maker analysis and accreditation
  • 605 & 606 hosting and compliance


  • Full Day workshops
  • Customized workshops


  • Technology
  • Compliance
  • Best Practices
  • Fin-Tech start-up


Chris Nagy is Founder & CEO of KOR Group LLC and has significant expertise in retail trading and US market-structure. Chris, a 25-year veteran of Wall Street, was previously the managing director of order routing, sales strategy and market-data strategy at TD Ameritrade where his responsibilities included developing and implementing best execution, routing technology and execution analytics, as well as developing routing and execution strategy. During his 12+ years with TD Ameritrade, Chris also co-headed the firm’s government relations efforts.  Chris has also worked with  US Bank, MJK and Sherson Lehman Brothers. Chris has served on a multitude of industry committees and exchange boards.  Chris served on the board of the Philadelphia Stock Exchange as the off-floor vice chairman from 2000–2004, the NYSE AMEX Options Exchange Board from 2010-2012, the NASDAQ Quality of Markets Committee, the Security Traders Association Trading Issues Committee, the Options Industry Council Roundtable. Chris was chairman of the SIFMA Options Committee from 2005–2007. Chris currently serves on the FINRA Uniform Practice Code Committee.  Chris also holds his FINRA Series, 4, 7, 24, 53,55, 63 Licenses, is a registered lobbyist, and is a graduate of the Securities Industry Institute Wharton Program.
Dave Lauer is President & Managing Partner of KOR Group LLC, specializing in Market Structure and Technology. Dave has extensive experience designing and building the infrastructure that underpins many modern electronic trading systems and several years experience as a quantitative analyst and trader on high-frequency trading desks. Dave's current work focuses on massively scalable technology, predictive analytics, complex systems design and consultation for organizations working to better understand and navigate modern equity markets. Dave's previous work includes technology architecture at Verdande Finance and IEX Group, public advocacy at Better Markets and electronic trading at Allston Trading and Citadel Investment Group. Dave was also an early employee at Tervela in its formative stages. In his spare time, Dave collaborates on the maintenance and advancement of Cowbird.com, an innovative online photo-narrative storytelling network. Dave sits on several for-profit and non-profit boards. Dave is also a registered lobbyist.
Rajarshi Das is the Director of Research of KOR Group LLC, focusing on innovative data-analysis of Market Microstructure dynamics for market surveillance that is informed by principled and quantitative measures of market integrity, transparency and fairness.  Over the last 20+ years, during his tenure as a researcher at IBM T. J. Watson ResearchLos Alamos National Laboratory and Santa Fe Institute, Rajarshi has established a strong track-record of successfully developing and applying Machine Learning and Information Theoretic tools to automatically discover hidden patterns in the dynamics of complex systems and to leverage the discovered insights for automated decision making in managing complex systems.  In his most recent venture at Verdande Finance, Rajarshi’s analysis of real-time, large-scale financial data with novel deep learning techniques helped to mitigate exposure and provide advance warning of revenue-impacting events at a leading financial institution in the US.  Rajarshi has deep expertise in Artificial Intelligence and its application for strategic reasoning in multi-agent environments including auctions and e-commerce.   Rajarshi is cited as an inventor in 13 published patents and 12 additional patent applications.  He has also published 60+ peer-reviewed articles at leading conferences/journals and has organized many international conferences and workshops across the globe.
Dimitrios Ilias is a Market Structure / Technology Analyst for KOR Group, with experience in software development and finance. From May 2013 till October 2014 he worked for White Knight Traders as a trading Software Developer. His responsibilities were to create and back-test day trading systems to program various indicators and signal generation algorithms, used in trading various futures. Before this, he founded a technology start-up company, a cross-platform task-management application that improves communication between healthcare professionals. The company came first in the London Startup Weekend competition and third in the Global Start-up Battle. Additionally, Dimitrios has interned as a Software Developer for IMC Technologies . Dimitrios has won several awards. He achieved first place in the Greek competition for Innovation and Creativity, as well as coming third for the European competition of Innovation and Creativity (Junior Achievement - European Union ) and presented his project to the European Parliament  in 2011. His current research  involves machine learning  and his dissertation focuses on applying deep learning to finance. Dimitrios is also a volunteer for Reload Greece.