JJC is an exchange traded note, which have different credit risks than ETFs. [ETNs are Not ETFs]
Also, since the ETN is designed to track copper futures rather than the spot price, it can be hurt by “contango.” [Five Things to Know About Commodity ETFs]
Aside from Europe’s debt crisis, copper ETFs are feeling the weight of fears China’s economy is slowing. [China Slowdown Hurts Base Metals ETFs]
iPath DJ-UBS Copper ETN