美国商品期货交易委员会（CFTC）：COMEX铜投机者在截至6月3日的一周内将净多头仓位增加了2,176手，达到23,869手。

Group 1 - The core point of the article is that speculators in COMEX copper have increased their net long positions by 2,176 contracts, reaching a total of 23,869 contracts as of the week ending June 3 [1]