The top aftermarket NYSE gainers Monday were: Emulex Corp, Sprint Nextel Corp, Skilled Healthcare Group, Radioshack, Cemex SAB, InvenSense, Quicksilver Resources, CBRE Group, Ultra Petroleum and Crexus Investment Corp.

Emulex Corp. (NYSE:ELX) shares climbed 7.17 percent to $7.09 in post market trading session. The company stock plunged more than 6 percent in regular trading session after Broadcom Corp. announced Monday that the United States District Court for the Central District of California has found ELX infringed two Broadcom patents: U.S. Patent Nos. 7,058,150 and 7,471,691.

Sprint Nextel Corp. (NYSE:S) shares surged 6.02 percent to $2.29 in aftermarket trading session. The company accused Time Warner Cable, Comcast Corp. and two other cable-TV companies of infringing patents related to transmitting phone calls over digital lines, Bloomberg reported.

Skilled Healthcare Group, Inc. (NYSE:SKH) shares surged 5.74 percent to $5.34 in aftermarket trading session. The company stock plunged more than 4 percent in regular trading session.

Radioshack Corp. (NYSE:RSH) shares gained 5.52 percent to $9.7 in post market trading session. The stock has a 52-week low of $9.22, a 52-week high of $18.90 and $921.50 million in market capitalization.

Cemex SAB de CV (NYSE:CX) shares surged 5.26 percent to $4.99 in aftermarket trading session. CEMEX USA recently finalized the $30 million sale of its approximately 8,500-acre Redwood Forest property near the CEMEX Davenport cement plant to a consortium of local land trusts.

InvenSense, Inc. (NYSE:INVN) shares advanced 4.59 percent to $9.84 in aftermarket trading session. The company stock plunged more than 5 percent in regular trading session.

Quicksilver Resources Inc. (NYSE:KWK) shares advanced 4.57 percent to $6.64 in aftermarket trading session. The company stock plunged more than 6 percent in regular trading session.

CBRE Group, Inc. (NYSE:CBG) shares advanced 4.47 percent to $14.96 in aftermarket trading session.

Ultra Petroleum Corp. (NYSE:UPL) shares gained 4.22 percent to $29.88 in aftermarket trading session. The stock has a 52-week low of $24.39, a 52-week high of $51.20 and $4.38 billion in market capitalization.

Crexus Investment Corp. (NYSE:CXS) shares gained 4.11 percent to $10.64 in aftermarket trading session. The company announced that its Board of Directors has declared the fourth quarter 2011 common stock cash dividend of $0.35 per common share payable on January 26, 2012.

Nyse Radioshack Court California