Research In Motion Ltd, Zynga, Facebook, Weatherford International, SAP, Arcelormitta, ADTRAN and Bank of America Corp. are among the companies whose shares are moving in pre-market trading Friday.

Research In Motion Ltd. (RIMM) stock rallied 18.91 percent to $8.49 in pre-market trading after the company reported the better-than-expected second quarter results. The company swung to the second quarter net loss of $235 million or $0.45 per share compared to the net income of $329 million or $0.63 per share in the same period last year. The adjusted net loss was $142 million or $0.27 per share, better than Reuters’ estimate of a loss of $0.46 per share.

Zynga Inc. (ZNGA) stock surged 2.11 percent to $2.90 in pre-market trading.  The stock has a 52-week low of $2.66, a 52-week high of $15.91 and $2.16 billion in market capitalization.

Facebook Inc. (FB) stock gained 1.87 percent to $20.70 in pre-market trading. The world's largest social networking site took a small step towards becoming an e-commerce platform by launching a feature for the users to buy and send real gifts worth as much as hundreds of dollars, Reuters reported.

Weatherford International Ltd. (WFT) stock advanced 1.11 percent to $12.79 in pre-market trading. The stock has a 52-week low of $10.85, a 52-week high of $18.33 and $9.61 billion in market capitalization.

SAP AG (SAP) stock gained 1.08 percent to $72.15 in pre-market trading. The Street Ratings reiterated “buy” rating on shares of SAP with a score of B+ Thursday.

Arcelormittal (MT) stock plunged 2.20 percent to $14.65 in pre-market trading. The stock has a 52-week low of $13.28, a 52-week high of $23.62 and $23.21billion in market capitalization.

ADTRAN, Inc. (ADTN) stock fell 1.64 percent to $18.84 in pre-market trading. The company currently expects the third quarter adjusted net profit to be in a range of $0.18 to $0.19 per share on revenues of $162 million while analysts expect a net profit of $0.30 per share on revenue of $187.20 million.

Bank of America Corp. (BAC) stock declined 1 percent to $8.88 in pre-market trading.  The stock has a 52-week low of $4.92, a 52-week high of $10.10 and $96.67 billion in market capitalization.