Chicago PMI slows down more than estimated

Copper futures fell in American trade away from January 16 highs for the seventh session out of nine, as the dollar index rebounded from December 17, 2014 lows for the seventh session out of nine as well, following earlier data from China, the world's largest metals consumer, and the US.

US GDP growth slowed down to 2.5% in the fourth quarter of 2017, matching expectations and down from the preliminary reading's 2.6% growth, and the third quarter's 3.2% growth rate.

Ethereum fell on Wednesday on track for the first loss in four days on profit-taking away from one-week highs, after the $900 barrier held its ground.