铜定价权：On the Shanghai Futures Exchange, the benchmark contract accounts for the most of the total daily turnover, while that on the LME accounts for just 40 percent. This lack of market depth in Shanghai's trading activity makes it challenging for investors to hedge their tra

铜定价权：On the Shanghai Futures Exchange, the benchmark contract accounts for the most of the total daily turnover, while that on the LME accounts for just 40 percent. This lack of market depth in Shanghai's trading activity makes it challenging for investors to hedge their trades. (CNBC)