For the purpose of this example, we will use a XBT/USD futures contract on BitMEX. The XBT/USD futures contract is trading at $30,000 USD, and each contract is worth one USD of Bitcoin at any price. The trader has made a profit of 2.5 XBT, for that is 27.5 XBT (Futures value at $33,000 XBT/USD price) – 25 XBT (Futures value at $30,000 XBT/USD price). The XBT/USD futures contract is trading at $30,000, and each contract is worth one USD of Bitcoin at any price. The trader has made a profit of 2.5 XBT, for that is -22.5 XBT (Futures value at $27,000 XBT/USD price) – 25 XBT (Futures value at $30,000 XBT/USD price).