NEW YORK (AP) â¿¿ A look at the 10 biggest percentage decliners on New York Stock Exchange at 1 p.m.:

STR Holdings Inc. fell 15.9 percent to $20.61.

Universal Travel Group fell 9.8 percent to $5.52.

Willbros Group Inc. fell 7.7 percent to $8.26.

Coeur d'Alene Mines Corp. fell 7.7 percent to $22.72.

Silvercorp Metals Inc. fell 7.5 percent to $11.28.

USG Corp. fell 7.5 percent to $13.53.

Hecla Mining Co. fell 7.4 percent to $8.26.

Boyd Gaming Corp. fell 7.4 percent to $9.44.

Patriot Coal Corp. fell 7.2 percent to $14.86.

First Industrial Realty Trust Inc. fell 7.0 percent to $7.03.
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