Vitol and Gunvor Rock Metals Markets With Big Aluminum Bets

(Bloomberg) -- Some of the world’s biggest energy traders are making waves in global metals markets by taking positions so large that they prompted questions from the London Metal Exchange. Most Read from Bloomberg Vitol Group and Gunvor Group have both taken long positions in the past few months in the LME aluminum contracts nearing expiry that were at times larger than the readily available stock in the exchange’s warehousing network, according to people familiar with the matter, who..