The top after-market NYSE gainers Monday were CTS Corp, KB Home, Susser Petroleum Partners, Standard Pacific Corp and LifeLock. The top after-market NYSE losers were Edwards Lifesciences Corp, Monster Worldwide, Barnes & Noble, LIN TV Corp and Media General, Inc.

Gainers

CTS Corp. (CTS) shares surged 4.56 percent to $9.04 in post-market trading. The company stock tumbled nearly 8 percent in regular trading.

KB Home (KBH) shares surged 3.57 percent to $15.65 in post-market trading. The stock has a 52-week low of $5.93, a 52-week high of $16.33 and $1.17 billion in market capitalization.

Susser Petroleum Partners LP (SUSP) shares rose 2.12 percent to $24.31 in post-market trading.

Standard Pacific Corp. (SPF) shares advanced 1.76 percent to $7.27 in post-market trading.

LifeLock, Inc. (LOCK) shares rose 1.65 percent to $7.41 in post-market trading. The stock has a 52-week low of $7.29, a 52-week high of $9.04 and $629.19 million in market capitalization.

Losers

Edwards Lifesciences Corp. (EW) shares tumbled 15.79 percent to $90.45 in post-market trading after lowering its third quarter revenue guidance. The company currently expects third quarter revenue to be $448 million, down from the guidance of $465 to $485 million provided during its second quarter earnings conference call on July 24, 2012. 

Monster Worldwide, Inc. (MWW) shares plunged 2.81 percent to $7.83 in post-market trading. The company stock rallied more than 10 percent in regular trading.

Barnes & Noble, Inc. (BKS) shares fell 2.41 percent to $13.98 in post-market trading. The stock has a 52-week low of $9.35, a 52-week high of $26.00 and $859.17 million in market capitalization.

LIN TV Corp. (TVL) shares fell 1.83 percent to $5.31 in post-market trading.

Media General, Inc. (MEG) shares declined 1.59 percent to $5.18 in post-market trading. The company announced Monday that it has sold The Tampa Tribune and its associated print and digital products to Tampa Media Group, Inc. for $9.5 million.