The companies whose shares are moving in pre-market trade on Thursday are: Titan International, Constellation Energy, Sprint Nextel, Aetna, Pultegroup, Dow Chemical, LSI Corp, Teradyne, Liz Claiborne, Procter & Gamble, Procter & Gamble and Colgate-Palmolive.

Titan International, Inc. (NYSE:TWI) shares climbed 12.32 percent to $31.00 in pre-market trading session. On late Wednesday, the company reported first quarter net income of $18.7 million or $0.37 per share compared to $2.08 million or $0.06 per share in the same quarter last year. Sales rose 43 percent to $280.8 million compared to $196.4 million in the first quarter of 2010.

Constellation Energy Group Inc. (NYSE:CEG) shares climbed 6.71 in pre-market trading session after Exelon Corp. (NYSE:EXC) and Constellation announced that they have signed a definitive agreement to combine the two companies in a stock-for-stock transaction.

Sprint Nextel Corp. (NYSE:S) shares surged 6.05 percent to $5.08 in pre-market trading session as its first quarter loss narrowed from previous year. Net loss narrowed to $439 million or $0.15 per share compared to $865 million or $0.29 per share in the same quarter last year, while analysts’ estimated net loss of $0.22 per share for the first quarter.

Aetna Inc. (NYSE:AET) shares climbed 5.68 percent to $42.07 in pre-market trading session. The company reported first quarter net income of $586 million or $1.50 per share compared to $562.6 million or $1.28 per share in the same quarter last year. Revenue declined to $8.35 billion from $8.54 billion in the previous year. Analysts’ expected net income of $0.97 per share on revenue of $8.38 billion for the first quarter. The company also expects full year earnings to be in the range of $4.20 to $4.30 per share against analysts’ estimation of $3.76 per share.

Pultegroup Inc. (NYSE:PHM) shares advanced 3.38 percent to $8.25 in pre-market trading session. Its first quarter net loss widened to $40 million or $0.10 per share compared to $12 million or $0.03 per share I the same quarter last year. Analysts’ expected a net loss of $0.13 per share for the first quarter.

Dow Chemical Co. (NYSE:DOW) shares advanced 2.33 percent to $40.85 in pre-market trading session after the company said its first quarter net income rose to $625 million or $0.54 per share from $466 million or $0.41 per share in the year-ago period. Sales rose 20 percent to $14.73 billion from $13.42 billion of last year.

LSI Corp. (NYSE:LSI) shares advanced 2.75 percent to $7.09 in pre-market trading session. The company reported first quarter net income of $82 million or $0.13 per share compared to $92 million or $0.14 per share in the same quarter last year. Analysts’ expected net income of $0.10 per share.

Teradyne, Inc. (NYSE:TER) shares plunged 7.05 percent to $17.00 in pre-market trading session as its second quarter revenue and earnings outlook fell short of expectations. The company expects second quarter earnings to be in the range of $0.27 to $0.34 per share on revenue of $375 to $400 million, while analysts’ expects net income of $0.44 per share.

Liz Claiborne, Inc. (NYSE:LIZ) shares slumped 6.11 percent to $6.55 in pre-market trading session. The company reaffirmed its guidance for adjusted EBITDA, excluding foreign currency transaction gains or losses, in the range of $100-$120 million for fiscal 2011 and $180-$220 million for fiscal 2012.

Procter & Gamble Co. (NYSE:PG) shares declined 1.59 percent to $63.00 in pre-market trading session as its third quarter earnings fell short of some analyst’ estimation due to higher raw material and marketing costs. Net income rose to $2.87 billion or $0.96 per share compared to $2.59 billion or $0.83 per share in the same quarter last year, while analysts’ expected net profit of $0.7 per share.

Colgate-Palmolive Co. (NYSE:CL) shares decline d1.31 percent to $80.00 in pre-market trading session. The company reported first quarter net income of $576 million or $1.16 per share compared to $357 million or $0.69 per share in the same quarter last year.

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