Cemetery / BitMEX
Exchange
wind down
Claims open
BitMEX
Derivatives exchange that pioneered the crypto perpetual swap; HDR Global Trading announced orderly closure effective 23 September 2026 04:00 UTC. New registrations stopped 23 July 2026; reduce-only from 26 August; users urged to close positions and withdraw. Post-closure login for balances/history remains with monthly custody fees if funds are left.
1. History reconstruction
Where leftover records may still live.
CSV / statements: Download trade / wallet history before and after Closure Time while account access remains; keep force-close fills.
Software: Perpetual / derivative PnL lines often need special event mapping — do not treat as simple spot trades.
- Force-closed positions at wind-down may create taxable realizations depending on jurisdiction.
- Post-closure custody fees (USD 50 or 1% p.a., monthly) — document fee deductions.
2. Sources
- BitMEX official closure announcement official
- CoinDesk — BitMEX wind-down secondary