Traders work on the floor of the New York Stock Exchange
Traders work on the floor of the New York Stock Exchange February 7, 2012. REUTERS

Herbalife Ltd, Nokia Corporation, National-Oilwell Varco Inc, Knight Capital Group Inc, Ellington Financial LLC, ArcelorMittal and MCG Capital Corporation are among the companies whose shares are moving in pre-market trading Wednesday.

Herbalife Ltd (HLF) stock advanced 11.75 percent to $58.03 in pre-market trading. The company, which has a market capitalization of $5.81 billion, has a 52-week low of $42.15 and a 52-week high of $73.

Nokia Corporation (NOK) stock climbed 3.21 percent to $2.57 in pre-market trading. The stock has a 52-week low of $1.63, a 52-week high of $7.38 and $9.32 billion in market capitalization.

National-Oilwell Varco Inc (NOV) stock rose 2.12 percent to $77.88 in pre-market trading. The stock has a 52-week low of $47.97, a 52-week high of $87.72 and $32.52 billion in market capitalization.

Knight Capital Group Inc (KCG) stock slumped 6.35 percent to $2.80 in pre-market trading. After trading losses at the beginning of the month, the company has been driven to the brink of bankruptcy.

Ellington Financial LLC (EFC) stock fell 3.38 percent to $22.60 in pre-market trading. The company, which has a market capitalization of $384.97 million, has a 52-week low of $15.76 and a 52-week high of $24.01.

ArcelorMittal (MT) stock dropped 1.28 percent to $15.40 in pre-market trading. The company, which has a market capitalization of $24.17 billion, has a 52-week low of $13.28 and a 52-week high of $23.80.

MCG Capital Corporation (MCGC) stock fell 1.28 percent to $4.62 in pre-market trading. The stock has a 52-week low of $3.40, a 52-week high of $5.07 and $345.90 million in market capitalization.