Published: Oct 19, 2012 3:02 PM EDT
Updated: Oct 20, 2012 6:31 AM EDT

Copper and other metals are ending lower as grim signals for the U.S. economy continue to emerge.

Copper for December delivery gave up 10.55 cents, or 3 percent, to settle at $3.6375 Friday. Palladium lost nearly 4 percent, and platinum and silver each gave up about 2 percent.

The outlook for the U.S. economy dimmed Friday as weak earnings reports poured in from major companies. Microsoft, McDonald's and General electric all fell sharply after reporting disappointing results for the third quarter.

Separately a trade group of realtors reported that sales of previously occupied homes fell 1.7 percent in September after hitting a two-year high in August

Most other commodities prices also ended lower. Energy prices fell broadly and agricultural futures were mixed.