The top after-market NYSE gainers Friday were General Cable Corp, Smithfield Foods, Frontline, Emeritus Corp and CVR Refining LP. The top after-market NYSE losers were Natural Resource Partners, Knight Capital Group, Advantest Corp and Campbell Soup Co.

Gainers

General Cable Corp. (NYSE:BGC) shares climbed 7.50 percent to $39.00 in post-market trading. The stock has a 52-week low of $23.73, a 52-week high of $36.58 and $1.80 billion in market capitalization.

Smithfield Foods Inc. (NYSE:SFD) shares surged 4.84 percent to $27.49 in post-market trading. The stock has a 52-week low of $17.55, a 52-week high of $26.73 and $3.60 billion in market capitalization.

Frontline Ltd. (NYSE:FRO) shares gained 3.56 percent to $2.33 in post-market trading. The stock has a 52-week low of $1.81, a 52-week high of $7.89 and $175.18 million in market capitalization.

Emeritus Corp. (NYSE:ESC) shares advanced 3.46 percent to $27.78 in post-market trading. The stock has a 52-week low of $14.24, a 52-week high of $30.95 and $1.23 billion in market capitalization.

CVR Refining LP (NYSE:CVRR) shares rose 2.29 percent to $34.40 in post-market trading. The company stock plunged nearly 5 percent in regular trading.

Losers

Natural Resource Partners LP (NYSE:NRP) shares plunged 2.42 percent to $23.00 in post-market trading. The stock has a 52-week low of $16.90, a 52-week high of $25.51 and $2.50 billion in market capitalization.

Knight Capital Group Inc. (NYSE:KCG) shares declined 1.30 percent to $3.81 in post-market trading. The stock has a 52-week low of $2.24, a 52-week high of $13.54 and $831.43 million in market capitalization.

Advantest Corp. (NYSE:ATE) shares declined 1.18 percent to $14.82 in post-market trading. The stock has a 52-week low of $10.80, a 52-week high of $17.25 and $2.60 billion in market capitalization.

Campbell Soup Co. (NYSE:CPB) shares fell 0.81 percent to $43.00 in post-market trading. The stock has a 52-week low of $31.32, a 52-week high of $43.45 and $13.62 billion in market capitalization.