Drawing on strong industry knowledge in repo, securities lending, and structured derivative transactions, Fieldfisher advises clients across a broad range of asset classes. The practice is headed by Emma Dwyer, who is particularly focused on derivatives regulation, including advising clients on regulatory interpretation and working closely with market infrastructure providers. A wide-ranging derivatives practice underpins the work of Jenny Warren, whose experience includes structured repo and stock loan transactions, synthetic securitisations, equity derivatives, and hedging arrangements. Guy Usher retired from the team in March 2026.
Legal 500 Editorial commentary

Accolades

Client satisfaction: Billing & efficiency

Key clients

  • Bank of America
  • Citigroup
  • FIA
  • Goldman Sachs
  • HSBC
  • ICBC Standard Bank
  • Jefferies
  • LCH
  • Munich Re
  • Nomura

Work highlights

Advised a major global financial institution on a comprehensive multi-stream review of over 200+ ISDA netting, collateral, and clearing member opinions across 90+ jurisdictions.
Advised a global investment bank on the impact of the Ardagh Group's proposed restructuring on its portfolio of cross-currency swaps with multiple Ardagh entities and provided guidance on risk exposure and early termination rights.
Advised a European broker on establishing a Korean law pledge structure under its GMSLA.

Lawyers

Leading partners

The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next Generation Partners

Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head

Emma Dwyer

Other key lawyers

Jenny Warren

Fieldfisher > Derivatives and structured products > London | Legal 500 law firm profiles