PVM, which is the London-based division of the worldâs biggest broker of over-the-counter derivatives, eventually lost almost $10 million in those early morning trades on Tuesday. Steve Perkins, a senior and long-standing trader, apparently unhappy with his first-half year bonus, brokered those contracts and has now been suspended from his post by PVM. http://seekingalpha.com/article/147196-the-backwards-robin-hood-effect-in-crude-oil-trading