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

United Therapeutics Corp. fell 18.2 percent to $39.91.

Globe Splty Metals fell 11.3 percent to $16.15.

ShoreTel Inc. fell 9.7 percent to $6.54.

Providence Worcester Railroad Co. fell 8.7 percent to $12.85.

Cadence Pharm fell 7.9 percent to $6.38.

Volterra Semiconductor Corp. fell 7.9 percent to $20.10.

FFD Financial Corp. fell 7.8 percent to $13.66.

Human Genome Sciences Inc. fell 7.2 percent to $13.26.

Harbin Electric Inc. fell 6.9 percent to $17.20.

Carbonite Inc. fell 6.5 percent to $13.16.
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