The top after-market Nasdaq gainers Friday were PDL BioPharma Inc, Volcano Corporation, SodaStream International Ltd, NETAPP and ANCESTRY.COM Inc.

The top after-market Nasdaq losers were James River Coal Company, Astex Pharmaceuticals Inc, Raptor Pharmaceutical Corp and Oclaro Inc.

Gainers

PDL BioPharma Inc (PDLI) shares climbed 7.89 percent to $ 8.90 in post-market trading. The company shares have 52-week trading range of $5.60 - $8.43 and a market capitalization of 1.15 billion.

Volcano Corporation (VOLC) shares surged 5.40 percent to $28.30 in post-market trading. The company announced plans to highlight its functional measurement technologies and clinical study results relating to Intravascular Ultrasound (IVUS) catheters and Fractional Flow Reserve (FFR) guide wires at the Transcatheter Cardiovascular Therapeutics (TCT) conference being held in Miami from Oct. 22 to Oct. 26.

SodaStream International Ltd (SODA) shares advanced 4.10 percent to $38.56 in post-market trading. The company stock lost over 5 percent in regular trading Friday.

NETAPP, Inc (NTAP) shares rose 2.24 percent to $ 30.62 in post-market trading. The company shares have a 52-week trading range of $27.79 - $46.8 and a market capitalization of 10.88 billion.

ANCESTRY.COM Inc (ACOM) shares gained 2.06 percent to $29.78 in post-market trading. The company stock lost over 1 percent in regular trading Friday. The company shares have 52-week trading range of $20.75-$33.8 and a market capitalization of 1.25 billion.

Losers

James River Coal Company (JRCC) shares plunged 2 percent to $4.90 in post-market trading. The company shares gained over 3 percent in regular trading.

Astex Pharmaceuticals Inc (ASTX) shares declined 1.89 percent to $2.60 in post-market trading.  The company shares lost 7 percent in regular trading.

Raptor Pharmaceutical Corp (RPTP) shares dropped 1.44 percent to $ 4.78 in post-market trading.  

Oclaro Inc (DRYS) shares declined 1.47 percent to close at $2.34 in regular trading Friday. The company shares lost over 2 percent in regular trading. The company shares have a 52-week trading range of $1.91 - $3.84 and a market capitalization of 982.68 million.