Among the largest underlying components of KOL, in trading today Joy Global Incorporated ( JOYG) is off about 4.3%, and Peabody Energy Corporation ( BTU) is lower by about 1.8%.

FORBES: Coal Stocks Less Attractive To Investors This Week

Among the largest underlying components of IYM, in trading today Newmont Mining Corporation ( NEM) is up about 0.8%, and Peabody Energy Corporation ( BTU) is up by about 1.4%.

FORBES: Funds Exit Basic Materials

Among the largest underlying components of PKOL, in trading today Peabody Energy Corporation ( NYSE: BTU) is down about 6%, Consol Energy Incorporated ( NYSE: CNX) is up about 3.6%, and Cameco Corporation ( NYSE: CCJ) is lower by about 1.8%.

FORBES: Investors Decrease Coal Position

Among the largest underlying components of KOL, in trading today Joy Global Incorporated ( NASD: JOYG) is off about 0.8%, Consol Energy Incorporated ( NYSE: CNX) is down about 0.2%, and Peabody Energy Corporation ( NYSE: BTU) is lower by about 1.1%.

FORBES: Coal Outflows Persist -- CNX, JOYG, BTU Top Holdings

Many coal companies such as Alpha Natural Resources and Peabody Energy Corporation are mulling over the fate of coal as consumption has continued to decline in the U.S.. Natural gas has undoubtedly given coal companies a run for their money since prices began to slide last year.

FORBES: Can Coal Exports Markets Make Up For Domestic Coal's Plunge?