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

AMN Healthcare Services Inc. fell 12.5 percent to $8.54.

Feihe International Inc. fell 9.3 percent to $5.54.

Vulcan Materials Co. fell 7.3 percent to $45.59.

Stillwater Mining Co. fell 6.4 percent to $13.02.

Tower International Inc. fell 6.0 percent to $8.01.

KapStone Paper fell 5.9 percent to $19.78.

Cliffs Natural Resources Inc. fell 5.5 percent to $43.03.

Midstates Petroleum Co. fell 5.5 percent to $8.63.

Spartech Corp. fell 5.4 percent to $5.39.

Pandora Media Inc. fell 5.4 percent to $10.74.

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