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

H&R Block Inc. fell 5.6 percent to $16.27.

Inphi Corp. fell 5.5 percent to $19.69.

Tyson Foods Inc. fell 5.3 percent to $17.88.

Thomson Creek Metals fell 5.2 percent to $10.67.

NeoPhotonics Corp. fell 4.3 percent to $9.63.

Barnes & Noble Inc. fell 4.3 percent to $13.76.

Emergent Biosolution fell 4.2 percent to $22.04.

First Horizon National Corp. fell 3.9 percent to $10.56.

Louisiana-Pacific Corp. fell 3.7 percent to $8.55.

Coeur d'Alene Mines Corp. fell 3.6 percent to $26.70.
Copyright 2011 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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