BitMEX in brief
BitMEX (Bitcoin Mercantile Exchange) was a crypto derivatives exchange run by HDR Global Trading Limited, a Seychelles company. Arthur Hayes, Ben Delo and Samuel Reed opened it in November 2014, and in May 2016 it launched XBTUSD, the perpetual swap that became the most traded contract in crypto. BitMEX led Bitcoin derivatives trading in 2018 and 2019, was charged by US authorities in October 2020, and stopped trading on September 23, 2026 after a failed sale. Its website now handles withdrawals only.
Founding: a futures venue with almost no volume (2014-2016)
Hayes had traded equity derivatives at Deutsche Bank and Citigroup in Hong Kong and lost his Citi job in 2013. With Delo, an Oxford-trained developer who had built trading systems, and Reed, a software engineer who became CTO, he set out to give crypto traders the leveraged contracts banks offered on stocks. Family and friends financed the start. A small SAFE round followed in July 2015, along with a place in SOSV's Chinaccelerator program. Early Bitcoin futures drew little interest: traders had to roll expiring contracts, and futures prices drifted away from spot.
XBTUSD: the contract that never expires
The fix was the perpetual swap. XBTUSD had no expiry date. Every eight hours, a funding payment moved between the two sides: longs paid shorts when the swap traded above the spot index, and shorts paid longs when it traded below. That kept the price anchored without settlement dates. The contract was quoted in dollars but margined and paid out in Bitcoin, so traders never touched a bank, and leverage ran up to 100x.
BitMEX paired the contract with two risk tools that became industry defaults: an automatic liquidation engine that closed losing positions before they went negative, and an insurance fund that absorbed shortfalls so profitable traders were rarely auto-deleveraged. Binance, OKX, Bybit and on-chain venues such as Hyperliquid now list perpetuals built on the same design.
Peak years (2017-2019)
Through the 2017 bull market and after, BitMEX ran the deepest Bitcoin derivatives order book in the world. Annual volume passed $1 trillion in 2019, and some estimates put its share of crypto derivatives near 57% that year. In 2018 Delo was reported as the UK's first Bitcoin billionaire. The CFTC later said BitMEX collected more than $1 billion in fees between 2014 and 2020, and argued that much of that business came from US customers the exchange was not registered to serve.
Charges, guilty pleas and pardons (2020-2025)
On October 1, 2020 the CFTC sued BitMEX's operating companies and founders, and federal prosecutors in New York charged Hayes, Delo, Reed and business development head Gregory Dwyer with failing to run an anti-money laundering program. Hayes and Reed stepped back days later, and BitMEX made identity checks mandatory.
The cases took more than four years to close. In August 2021 the company agreed to a $100 million civil penalty with the CFTC and FinCEN. The founders pleaded guilty in February and March 2022, received probation and each agreed to a $10 million CFTC penalty. HDR Global Trading itself pleaded guilty in July 2024 and was fined $100 million on January 15, 2025. In March 2025 President Trump pardoned the founders, Dwyer and the company.
Why BitMEX closed in 2026
Legal relief came too late to bring liquidity back. Traders who left in 2020 settled on Binance, Bybit and OKX, and on-chain perpetual exchanges drew more. HDR Global Trading hired Broadhaven to sell BitMEX, reportedly seeking about $1 billion, but potential buyers including Exodus walked away over the founders' majority ownership, a shrinking business and lingering lawsuits. In late June 2026 CEO Stephan Lutz, CFO Ina Steiner and chief growth officer Raphael Polansky left, and general counsel and COO Peter Wilkinson took over.
On July 23, 2026 the board announced the closure, saying it followed a strategic review of the business and the wider crypto industry. CryptoQuant data put BitMEX at about 0.08% of Bitcoin futures volume by then, and the BMEX token fell about 90% that day. New positions were barred from August 26, spot markets stopped on September 21, and derivatives trading ended at 04:00 UTC on September 23, 2026.
What BitMEX customers can still do
Accounts remain open for login and withdrawal, but deposits are no longer credited. BitMEX added identity refreshes, test transactions and cooldowns to withdrawals and warned that anyone offering faster or priority withdrawals is likely a scammer. Balances left on the platform carry a monthly account fee equal to the greater of $50 or an annualized 1%, and BitMEX has said the fee will rise over time.
Lawsuits still pending
Two suits filed in 2026 allege BitMEX's liquidation system was used against its own customers. A proposed class action filed in the Southern District of New York on July 23 seeks 622.66 BTC and claims an internal trading desk had privileged access to order data. On September 12 the Celsius bankruptcy estate sued HDR Global Trading and four affiliates for 6,360 BTC tied to liquidations on March 12 and 13, 2020. Neither claim has been decided.
BitMEX's legacy
The product outlived the exchange. CoinGecko estimated $85.3 trillion of centralized perpetual futures volume in 2025, all built on the funding-rate contract BitMEX introduced in 2016. BitMEX says it never lost customer funds to a hack in more than 11 years. Its history is also a case study in a moat that was not one: a design anyone could copy, a lead lost to regulators and rivals, and a final chapter spent processing withdrawals.
