Experienced in regulatory compliance and contentious derivatives matters, the team at Katten is sought after by derivatives exchanges, brokerage firms and financial services institutions. Splitting his time between Chicago and New York, practice co‑head Lance Zinman advises on crypto and blockchain matters and handles regulatory investigations. Fellow co‑heads Daniel Davis in Washington DC and Carl Kennedy in New York both focus on financial markets regulation. Davis is well-versed in CFTC matters, energy contracts and crypto‑derivatives products, while Kennedy brings deep expertise in over‑the‑counter and listed derivatives and is also experienced in high‑stakes regulatory and transactional matters. In Chicago, Christian Kemnitz is noted for defending financial services firms in litigation and CFTC enforcement actions, and is also experienced in derivatives regulatory issues involving the CFTC and broader domestic and international regulatory matters. In New York, Stephen Morris advises on interpreting the SEC Treasury‑clearing mandate, comparing clearing‑agency rules and addressing market‑structure integration issues. Chicago‑based Brian Poronsky defends trading firms and investment banks in arbitrations, federal court proceedings and financial services litigation, including multi‑district matters, and also advises on regulatory and enforcement investigations. In New York, Alexander Kim is noted for his contributions to derivatives regulatory matters.
Legal 500 Editorial commentary
Key clients
- Barclays Bank PLC
- Bitnomial Clearing
- CHS Hedging, LLC
- CHS, Inc.
- ElectronX
- Futures Industry Association
- R.J O’Brien & Associates, LLC
- Royal Bank of Canada
- StoneX Financial
- Tradeweb Markets
Work highlights
Represented ElectronX in obtaining CFTC registrations as both a designated contract market and a derivatives clearing organization.
Served as lead counsel in representing Bitnomial Exchange and Bitnomial Clearinghouse, LLC with respect to several high-level derivatives regulatory matters, including launching the first-ever US perpetual futures contract.
Served as lead counsel in representing R.J. O’Brien & Associates, LLC (RJO) in the sale of its business to StoneX.
Practice head
Lance Zinman; Daniel Davis; Carl Kennedy
Other key lawyers
Christian Kemnitz; Matthew Kluchenek; Stephen Morris; Brian Poronsky; Alexander Kim
