According to the ETF Finder at ETF Channel, NAK makes up 1.30% of the First Trust ISE Global Copper Index Fund ETF ( NASD: CU) which is trading lower by about 2.7% on the day Wednesday.

FORBES: NAK Crosses Critical Technical Indicator

According to the ETF Finder at ETF Channel, TGB makes up 2.76% of the First Trust ISE Global Copper Index Fund ETF ( NASD: CU )which is trading lower by about 1.2% on the day Friday.

FORBES: Taseko Mines Ltd. Stock Getting Very Oversold

According to the ETF Finder at ETF Channel, NAK makes up 1.77% of the First Trust ISE Global Copper Index Fund ETF ( NASD: CU) which is trading higher by about 0.4% on the day Wednesday.

FORBES: NAK Crosses Critical Technical Indicator

Among the largest underlying components of CU, in trading today Southern Copper ( NYSE: SCCO) is down about 1.8%, Freeport-McMoRan ( NYSE: FCX) is off about 7.1%, and Rio Tinto Plc ( NYSE: RIO) is lower by about 5.6%.

FORBES: Investors Move Money Out Of Copper