Binance's £150M London Lawsuit: Retail Leverage Claims Hit Crypto Derivatives

London's High Court is now hosting the largest group claim yet against a crypto exchange over retail leverage. On June 29, 1,692 individuals filed a claim against Binance Holdings Limited, Nest Exchange Limited, Changpeng Zhao, and Persons Unknown. The group's lawyers, KP Law, said the claim seeks more than £150 million in total recovery, according to media reports published June 30 and July 1.

The claim form, filed by lead claimant Tomas Sutas, alleges that from September 13, 2019 onward, Binance and related operators promoted and sold leveraged tokens, futures, options, and margin products to UK retail users. These activities allegedly breached the Financial Services and Markets Act (FSMA), the core UK financial regulation.

The Financial Conduct Authority banned the sale of crypto derivatives and ETNs to retail consumers in early 2021. The UK's financial promotion regime, tightened further in late 2023, makes it unlawful to communicate certain investment promotions to retail without approvals and specific risk controls. Under FSMA, carrying on a regulated activity without authorisation is prohibited. The claimants argue that Binance crossed that line by marketing and selling leverage to UK retail.

Binance's derivatives dominance gives the case weight. At the end of May 2026, the exchange accounted for roughly 23.8% of total industry open interest, according to CoinDesk Research. A case focused on leveraged products hits the centre of the platform's revenue engine. Even if the monetary claim is modest relative to Binance's overall volumes, the process risk is real. Discovery can force internal changes across product lines, from promotions to geofencing logs.