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

Rambus Inc. fell 60.6 percent to $7.11.

Amtech Systems Inc. fell 16.9 percent to $8.62.

FNB United Corp. (NC) fell 12.9 percent to $12.82.

Southern First Bancshares Inc. fell 9.3 percent to $7.19.

Universal Truckload Services Inc. fell 9.2 percent to $13.58.

Zeltiq Aesthetics Inc. fell 9.0 percent to $15.47.

Fidelity BanCorp. Inc. fell 8.8 percent to $8.57.

Globe Splty Metals fell 8.8 percent to $13.89.

Mitek Systems Inc. fell 8.7 percent to $8.35.

Hallador Energy Co. fell 8.5 percent to $9.25.
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