Also Goldman sachs have sold their long copper positions and have advised their clients to do the same. They see head winds for future copper price growth also there is speculation that China has huge stockpiles of copper and with the intentional slowing of the economy there is talk of a copper surplus in 2011..
Source...Financial times subscription service. unable to post a link but you may have some luck googling it..
CDU Price at posting:
$3.09 Sentiment: None Disclosure: Not Held