Nasdaq Stocks Posting Largest Percentage Decreases

NEW YORK (AP) â¿¿ A look at the 10 biggest percentage decliners on Nasdaq at the close of trading:

Threshold Pharmaceuticals Inc. fell 19.7 percent to $7.00.

Heidrick & Struggles International Inc. fell 8.5 percent to $13.23.

National Security Group fell 7.8 percent to $8.13.

Globe Splty Metals fell 7.5 percent to $15.77.

China Natural Resources Inc. fell 7.1 percent to $6.50.

Parametric Sound Corp. fell 7.1 percent to $10.41.

Tecumseh Products Co. B fell 7.0 percent to $6.02.

NN Inc. fell 6.7 percent to $8.32.

John B. Sanfilippo & Son Inc. fell 6.6 percent to $15.71.

Patriot Transportation Holding Inc. fell 6.5 percent to $24.95.
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