【05月19日芝加哥商业交易所（CME）黄金、白银、铜成交量及未平仓数据】1. 黄金期货成交量为214727手，较上个交易日减少57456手。未平仓合约为443157手，较上个交易日增加1491手。2. 白银期货成交量为36371手，较上个交易日减少6865手。未平仓合约为137665手，较上个交易日增加464手。3. 铜期货成交量为53318手，较上个交易日增加4002手。未平仓合约为205280手，较上个交易日增加4522手。
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