LME. Nickel $ Going Thru The Roof . Huge Short Squezze Read On . (Quote). The LME faced criticism from investors and financial traders, who said the decision to cancel trades executed before the suspension caused them to miss out on profits and lose money on paired trades between nickel and other assets. “Clearly these are unprecedented times and they have called for us to take action we would not wish to have taken,” LME Chief Executive Matthew Chamberlain said. “We faced a choice between ensuring the overall and longer-term financial stability of the market, and the shorter-term trading profits of those participants who had traded on Tuesday morning.”