BitMEX Delists XBTUSD, Ending 12-Year Run of the First Bitcoin (BTC) Perpetual

One Contract, Twelve Years, No Expiry

BitMEX has settled and delisted XBTUSD, the contract that gave traders their first leveraged Bitcoin (BTC) market with no expiry date, and the platform itself goes offline on September 23. XBTUSD launched on May 13, 2016 and ran for more than a decade — an unusually long life for a derivatives product that broke every convention of traditional futures. Conventional futures expire on fixed dates, forcing traders to roll positions and splitting liquidity across a calendar of contracts. XBTUSD removed that friction entirely: one continuous market, one order book, liquidity concentrated instead of fragmented. That single design choice is why the delisting reads as a structural event rather than routine housekeeping. BitMEX also engineered the funding mechanism that still defines perpetuals, keeping the contract price pinned near spot: when too many traders crowd onto one side of the trade, they pay the other side, dragging the mark back toward the spot rate. Leverage followed. At launch, traders could control $100 of Bitcoin exposure for every $1 they posted; the ceiling later climbed to 250x in April 2024 for accounts that activated the Leverage Booster feature. For retail traders in 2016, the format collapsed the complexity of rolling futures into something closer to spot trading with margin. In its farewell thread, the exchange credits co-founders Arthur Hayes, Ben Delo and Samuel Reed, who kept returning to one question — why should a market that trades around the clock be forced onto expiring futures? — an idea BitMEX says began as scribbles on a napkin in a Hong Kong bar. The exchange’s official announcement positions XBTUSD as the world’s first perpetual swap, and market history bears that out: every venue that followed copied the template rather than replacing it.

scribbles on a napkin in a Hong Kong barhttps://x.com/BitMEX/status/2100602929812291687?ref_src=twsrc%5Etfw

Perpetuals Now Exceed 75% of Crypto Volume

XBTUSD’s influence outgrew BitMEX years before the delisting. Binance, Bybit, OKX and Hyperliquid each run their own perpetual implementations, and BitMEX’s own figures put perpetual contracts at more than 75% of total crypto trading volume — laid out in its closing data post — a share that now defines the broader Bitcoin market. The format is also marching beyond crypto-native venues. Kalshi filed with US regulators in August to offer stock index perpetual futures, and Kraken’s parent company intends to bring Hyperliquid perpetuals to US traders through a regulated venue, pushing the expiry-free design into conventional markets accustomed to wrappers such as the spot ETF complex. BitMEX closed with a stark record: “12 years. 0 customer funds lost. Every bull and bear cycle crypto has ever had.” That claim covers funds lost to security breaches, not losses traders incurred trading — a distinction worth flagging. Celsius sued five BitMEX entities on September 12 over 6,360 Bitcoin lost to forced liquidations in the March 2020 crash, a whale-scale sum that sits squarely outside the exchange’s hack-free definition. Traders weighing where perpetual volume consolidates next can also follow our running coverage of the best crypto exchanges, which tracks how top venues structure leverage and funding today. Readers tracking the market in real time can follow live spot and futures prices on Bybit.

laid out in its closing data posthttps://x.com/BitMEX/status/2100602932295266334?s=20

A Structure That Outlives Its Creator

COINOTAG’s read: the delisting is administrative; the market-structure shift is not. The primary record — BitMEX’s own posts, from the founding-napkin thread to the shutdown notice and the 75%-of-volume breakdown — documents a product that became the default venue for leveraged BTC exposure and then escaped its inventor entirely. The open question is whether Kalshi’s US filing and Kraken’s parent’s regulated rollout replicate the funding mechanic or dilute it. XBTUSD is gone; the market it invented is still expanding.