Spending more than $ 1bn , joy global bought imm over several stages between july 2011 and early 2012 .
久益环球在2011年7月至2012年初分阶段收购国际煤机集团，总共支出逾10亿美元。
Last week , long australian dollar positions held by speculative investors trading the chicago-based international monetary market , or imm , touched a record high last set in december 2006 .
