The top after-market NASDAQ stock market losers are: Comverge, Vertex Pharmaceuticals, S1 Corp., TFS Financial, Extreme Networks, Regeneron Pharmaceuticals, West Coast Bancorp, FSI International, Daktronics, and LodgeNet Interactive.

Comverge, Inc. (COMV) lost 5.04 percent to $6.37 in the after-hours trading.

Vertex Pharmaceuticals Inc. (VRTX) plunged 3.70 percent to $33.01 in the after-market session.

S1 Corp. (SONE) plummeted 3.47 percent to $6.34 in the after-hours trading.

TFS Financial Corp. (TFSL) fell 3.36 percent to $7.77 in the after-market session.

Extreme Networks Inc. (EXTR) dropped 3.06 percent to $2.85 in the after-hours trading.

Regeneron Pharmaceuticals, Inc. (REGN) tumbled 2.81 percent to $28.02 in the after-market session.

West Coast Bancorp (WCBO) declined 2.61 percent to $2.61 in the after-hours trading.

FSI International Inc. (FSII) decreased 2.50 percent to $3.29 in the after-market session.

Daktronics Inc. (DAKT) moved down 2.45 percent to $13.60 in the after-hours trading.

LodgeNet Interactive Corp. (LNET) fell 2.17 percent to $3.15 in the after-market session.

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