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Research In Motion Ltd, BT Group Plc, Chindex International, VMware, Amazon.com, Con-way, Rio Tinto and Seadrill Ltd, are among the companies whose shares are moving in the pre-market trading Thursday.

Gainers

Research In Motion Ltd. (NASDAQ:BBRY) stock surged 2.81 percent to $16.09 in pre-market trading. The company announced Wednesday that one of its established partners has placed an order for one million BlackBerry 10 smartphones, the largest single purchase order in BlackBerry's history, with shipments starting immediately.

BT Group plc (NYSE:BT) stock gained 2.15 percent to $40.43 in pre-market trading. The stock has a 52-week low of $30.92, a 52-week high of $43.22 and $31.81 billion in market capitalization.

Chindex International, Inc. (NASDAQ:CHDX) stock gained 1.63 percent to $11.20 in pre-market trading. The company reported fourth quarter net profit of $3.5 million or $0.20 per share, up from $1.2 million or $0.07 per share in the same period last year. Quarterly revenue surged 36 percent to $43.5 million compared to $31.9 million last year.

VMware Inc. (NYSE:VMW) stock advanced 1.11 percent to $82.27 in pre-market trading. The stock has a 52-week low of $70.05, a 52-week high of $118.79 and $34.88 billion in market capitalization.

Losers

Amazon.com Inc. (NASDAQ:AMZN) stock declined 1.49 percent to $271.00 in pre-market trading. The stock has a 52-week low of $180.30, a 52-week high of $284.72 and $125.05 billion in market capitalization.

Con-way Inc. (NYSE:CNW) stock declined 1.32 percent to $36.75 in pre-market trading. Analysts at Citigroup Tuesday raised their price target on shares of Con-way to $42.00.

Rio Tinto Plc (NYSE:RIO) stock declined 1.59 percent to $49.46 in pre-market trading. The stock has a 52-week low of $41.59, a 52-week high of $60.45 and $92.84 billion in market capitalization.

Seadrill Ltd. (NYSE:SDRL) stock declined 1.14 percent to $36.49 in pre-market trading. The stock has a 52-week low of $31.37, a 52-week high of $41.95 and $17.32 billion in market capitalization.