. . . . . "The other 19 companies in the index are metal and metal mining companies involved in such metals as steel (e.g., AK Steel, US Steel), titanium (Titanium Metals Corp), aluminum (Alcoa, Century Alum), copper (Freeport-McMoRan), gold & silver (Newmont, Royal Gold, Coeur D Alene Mines), platinum and palladium (Stillwater Mining), and others." . . .