The companies whose shares are moving in pre-market trade on Monday are: Bristol Myers Squibb, Chesapeake Energy, Sprint Nextel, Valero Energy, Bank of America, Aetna, Verizon Communications, Weyerhaeuser, Nvidia and Corning.

Bristol Myers Squibb Co. (NYSE:BMY) shares climbed 7 percent to $27.50 in pre-market trading session. The company stock was upgraded to “outperform” rating from a “neutral” rating at Cowen.

Chesapeake Energy Corp. (NYSE:CHK) shares surged 4.13 percent to $31.30 in pre-market trading session. The company announced that it has decided to sell all of its Fayetteville Shale assets, as well as its equity investments in Frac Tech Holdings, LLC and Chaparral Energy, Inc.

Sprint Nextel Corp. (NYSE:S) shares gained 2.27 percent to $4.50 in pre-market trading session on Monday on the news the company is adding a Kyocera Corp. smartphone to its lineup at an event in New York today.

Valero Energy Corp. (NYSE:VLO) shares advanced 2.22 percent to $27.12 in pre-market trading session. The stock has a 52 week low of $15.49 and 52 week high of $26.99 and has $15.02 billion market capitalization.

Bank of America Corp. (NYSE:BAC) shares advanced 1.68 percent to $14.53 in pre-market trading session. The company announced Friday its exit from the reverse mortgage origination business and the formation of a new unit to address defaulted loans.

Aetna Inc. (NYSE:AET) shares gained 1.60 percent to $38.02 in pre-market trading session. The company reported fourth quarter net income of $215.6million compared to $165.9 million for the same period in 2009. For the full-year ended December 31, 2010, the company reported a net income of $1.76 billion from $1.27 billion for the same period in 2009.

Verizon Communications Inc. (NYSE:VZ) shares gained 1.18 percent to $36.74 in pre-market trading session. The stock has a 52 week low of $25.99 and 52 week high of $37.70 and has $102.65 billion market capitalization.

Weyerhaeuser Co. (NYSE:W) shares declined 5.23 percent to $23.03 in pre-market trading session. The company stock was downgraded to “hold” rating from “buy” rating at McAdams Wright Ragen based on Valuation.

Nvidia Corp. (NASDAQ:NVDA) shares declined 2.30 percent to $25.08 in pre-market trading session after the company stock was downgraded to “hold” rating from “buy” rating at Cowen.

Corning Inc. (NYSE:GLW) shares declined 1.41 percent to $23.04 in pre-market trading session. The company stock was downgraded to “hold” rating from”buy” rating at Citigroup.