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Financial Services and Securities Litigation

Allen & Overy’s market-leading Financial Services and Securities Litigation practice acts for some of the world’s leading financial institutions and financial services companies on complex, high-stakes contentious issues.

Whether working on cases involving mergers and acquisitions, commercial contracts, securities or insolvency, our specialist litigators take a practical and commercial approach to resolving disputes as efficiently and effectively as possible.

We provide first-rate sector, product and transaction knowledge aligned with our pre-eminent global finance practice, drawing on our unrivalled banking, capital markets and derivatives practices in the world’s main financial hubs.

Our dedicated Financial Services and Securities litigation team works closely with our transactional specialists to give clients an edge in disputes, and this regular collaboration allows us to identify and pre-empt regulatory and sector trends in order to protect clients from future business risks. We act for market leading investment banks, asset managers, hedge funds, private banks and retail banks.

Our work includes: 

  • Acting for BNP Paribas in class action litigation in the U.S. District Court in the Southern District of New York, involving claims that some of the biggest banks in the world manipulated the global foreign exchange (FX) market. 
  • Acting for an American investment bank in  U.S. litigation in which we won dismissal of RICO and common law claims arising from the institution’s provision of banking services to the Bernard L. Madoff firm.
  • Advising an executive of a global financial institution on defending fraud allegations related to subprime mortgages before the SEC and U.S. Senate committee.
  • Acting for four banks in successfully defending against misrepresentation claims brought by Marme Inversiones regarding the EURIBOR benchmark, seeking to rescind interest rate swaps or recover damages in excess of EUR996 million.

News and insights

Cryptocurrency digital screen

Publications: 05 December 2023

Episode 8: Deconstructing Crypto - The Post-FTX Landscape

In episode 8 of Deconstructing Crypto, Todd Fishman and Gene Ingoglia break down the trial of FTX founder Sam Bankman-Fried, in which a federal jury found him guilty of seven counts of fraud.

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Building feature

Blog Post: 27 November 2023

At what cost? Upper Tribunal awards costs to applicants in significant financial services case

The UK Upper Tribunal (the Tribunal) has made a rare order for costs against the Financial Conduct Authority (the Authority), including because of what the Tribunal considered to be inadequate efforts…

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An LCD graph of the stock market

Publications: 19 January 2023

Episode 4: Deconstructing Crypto - The Post-FTX Episode

Following the indictments of senior FTX executives, two guilty pleas and related enforcement actions by the U.S. Securities and Exchange Commission and Commodity Futures Trading Commission, the…

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Crypto token information

Publications: 05 December 2022

Episode 3: Deconstructing Crypto - A Requiem for Crypto?

Severe liquidity issues continue to plague large digital asset trading platforms. Most recently, FTX and its affiliated trading arm Alameda filed for protection under chapter 11 of the U.S. bankruptcy…

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Compact contract

Wooden jenga blocks scattered across a table

A brief look at topical issues in contract law

A blog where experts from Allen & Overy analyse the latest contract law themes and developments, and what they mean for your business.