BitMEX
Arthur Hayes, Ben Delo, and Samuel Reed opened BitMEX in 2014. The product is a derivatives book.
Arthur Hayes, Ben Delo, and Samuel Reed opened BitMEX in 2014. HDR Global Trading, registered in Seychelles, runs it. The product that made the name was the bitcoin perpetual swap: a futures contract with no expiry. Customers post margin in bitcoin. They do not need to own the coin they are betting on.