Lewis Barber, a UK software engineer, has filed a claim in London's Commercial Court against HDR Global Trading, the operator of BitMEX, seeking the return of 324.8 Bitcoin. The claim alleges that BitMEX conducted regulated derivative activities with Barber without authorization from the Financial Conduct Authority (FCA). According to the particulars of claim reviewed by Decrypt and reported by The Guardian, the Bitcoin was valued at £20.4 million on October 1, approximately $27.2 million based on exchange rates cited in the filing.
Barber entered into roughly 2,294 trades on the platform between 2018 and 2022 across five accounts. The lawsuit challenges 1,053 of these trades, all of which were perpetual swaps, arguing they constitute regulated activities under the Financial Services and Markets Act 2000. Because BitMEX lacked FCA authorization, the claim asserts these contracts are unenforceable against Barber. Additionally, Barber seeks damages for deceit, alleging BitMEX knowingly represented itself as authorized to trade lawfully in the UK.
The claim highlights that BitMEX did not restrict access from the UK, allowed users to select it as their country of residence, and ran global promotional campaigns, including an advertisement in The Times in January 2019. It also references an FCA warning from March 2020 stating BitMEX may have been trading regulated investments without authorization. Although the claim has been filed, it has not yet been formally served on HDR Global Trading. A BitMEX spokesperson stated no such claim had been served. This legal action follows BitMEX’s shutdown in September and coincides with other regulatory issues, including a proposed class action in New York and previous guilty pleas by co-founders regarding Bank Secrecy Act violations.
This litigation underscores the persistent legal risks associated with operating crypto derivatives platforms in jurisdictions where they lack specific regulatory approval. By challenging the enforceability of perpetual swaps under the Financial Services and Markets Act 2000, Barber’s case tests whether historical unauthorized activity can be retroactively voided, potentially exposing exchanges to significant restitution liabilities. The inclusion of a deceit claim further complicates the defense strategy, suggesting that implicit representations of compliance could trigger separate tortious liability beyond contract enforcement issues.
From a Compliance perspective, the potential for similar claims by other UK traders, estimated by lawyers to reach hundreds of millions of pounds, indicates a broader systemic risk for BitMEX and its operator. Even though the exchange has shut down, the legal exposure remains active, particularly given the lack of formal service confirmation from the defendant. This situation highlights how regulatory warnings, such as the FCA’s 2020 notice, can serve as foundational evidence in civil suits, transforming prior regulatory friction into concrete financial penalties through private litigation.


