Copper ETF Slump Doesn’t Bode Well for Global Markets

Exchange traded funds that track copper prices, a leading indicator for the global economy, slipped Friday as China’s growth prospects come into question. The iPath AIG Copper Total Return Sub-Index ETN (NYSEArca: JJC) fell 1.8% Friday. JJC is has declined 13.3% year-to-date. Copper futures...