840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS9zdG9yYWdlL3VwbG9hZHMvdmlldy81NmU4NTk5ODg3MmM0NGJhYzY4ODg5MGYzZTNlNDE4NS5qcGc3D Continue Reading Previous What are perpetual futures contracts in cryptocurrency?