London Metal Exchange Faces Complaint From US Hedge Fund Group Over Cancelled Nickel Trades

Traders operate in the Ring, the open trading floor of the new London Metal Exchange (LME) in central London on Feb. 18, 2016. The Ring has provided a transparent and robust price-discovery process for the global metals industry for 139 years. Leon Neal/AFP via Getty Images

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On June 1, U.S. hedge fund Elliot Management filed a suit against LME in the English High Court for $456 million over its controversial decision to suspend nickel futures contracts and cancel trades in early March.