Key Points
- A proposed class action lawsuit targets BitMEX over allegedly improper Bitcoin liquidation practices.
- Two plaintiffs claim collective losses totaling 622.66 BTC from forced position closures.
- The legal filing accuses BitMEX’s trading desk of accessing privileged customer data.
- Platform outages allegedly prevented traders from adjusting positions during market swings.
- The lawsuit claims surplus Bitcoin from liquidations went to BitMEX’s insurance fund rather than customers.
A proposed class action lawsuit has been filed against BitMEX in United States federal court, arriving during the final months before the cryptocurrency derivatives platform concludes operations after more than a decade in business. The legal action accuses the exchange of operating a liquidation mechanism that favored the platform at the expense of customer Bitcoin holdings. BKX Services Inc. and individual trader David Namdar submitted the complaint to the US District Court for the Southern District of New York.
The two plaintiffs state they were forced to surrender a total of 622.66 Bitcoin through liquidation events on the BitMEX platform. BKX Services reports losing no less than 305.81 BTC, while Namdar indicates losses surpassing 316.85 BTC. The legal filing seeks court intervention to recover the allegedly withheld Bitcoin, plus additional compensatory and punitive financial damages.
Lawsuit claims liquidation system favored exchange interests
The legal complaint states that BitMEX structured its liquidation mechanism to maximize platform revenue rather than safeguard customer interests. The filing asserts that an internal trading operation maintained access to private customer data and executed trades during timeframes when ordinary users faced platform restrictions.
The plaintiffs further contend that system outages prevented traders from modifying or exiting positions during periods of significant market movement. These technical disruptions allegedly left customers powerless to act while the exchange’s internal operations continued functioning normally.
Bitcoin insurance fund central to fraud allegations
According to the lawsuit, BitMEX permitted traders to operate with leverage ratios reaching 100 times their posted collateral. The complaint alleges that positions faced automatic liquidation even when remaining collateral values still covered actual trading losses.
The filing additionally asserts that surplus Bitcoin from these liquidations flowed into BitMEX’s insurance fund rather than being returned to account holders. This mechanism allegedly enabled the platform to retain excess collateral produced by forced liquidation events.
Legal action emerges as platform prepares closure
This recent lawsuit brings back allegations previously directed at BitMEX. Another class action filed during 2020 presented comparable claims under the Commodity Exchange Act. That prior legal action was voluntarily withdrawn without prejudice during June 2025.
The current complaint was filed on the identical day BitMEX publicly announced its decision to cease operations following a strategic evaluation by parent company HDR Global Trading. The platform confirmed it will terminate business activities on Sept. 23, has already halted acceptance of new customer accounts, and will block users from initiating new positions starting Aug. 26. Market reports indicate the exchange’s BMEX utility token experienced an approximate 90% value decline following the closure announcement.
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