Yahoo Inc, Rio Tinto, PhotoMedex, Newmont Mining, VMware, New Oriental Education, Red Hat and Zynga Inc. are among the companies whose shares are moving in the pre-market trading Tuesday.

Yahoo Inc (NASDAQ: YHOO) stock surged 2.95 percent to $20.91 in pre-market trading. The company reported fourth quarter net profit of $272 million or $0.23 per share, down from $295.6 million or $0.24 per share in the same period last year. Adjusted net profit was $0.32 per share compared to $0.25 per share last year and also topped Reuters' estimation of $0.28 per share.

Rio Tinto Plc (NYSE:RIO) stock gained 1.60 percent to $55.75 in pre-market trading. The stock has a 52-week low of $41.59, a 52-week high of $63.18 and $101.34 billion in market capitalization.

PhotoMedex Inc. (NASDAQ:PHMD) stock gained 1.16 percent to $14.80 in pre-market trading. The stock has a 52-week low of $9.85, a 52-week high of $19.18 and $314.23 million in market capitalization.

Newmont Mining Corp. (NYSE:NEM) stock advanced 1 percent to $43.25 in pre-market trading. TheStreet Ratings has reaffirmed “hold” rating on shares of Newmont Mining with a rating score of C+.

VMware Inc. (NYSE:VMW) stock plunged 14.67 percent to $83.90 in pre-market trading. Currently, the company expects first quarter revenue to be in a range of $1.17 billion to $1.19 billion, below the analysts’ estimation of $1.25 billion. VMware also announced that it would eliminate approximately 900 jobs and planned to exit certain lines of business and consolidation of facilities.

New Oriental Education & Tech Group (NYSE:EDU) stock slumped 2.23 percent to $17.50 in pre-market trading. The company reported second quarter net loss of $0.10 per ADS compared to net profit of $0.02 per share in the same period last year.

Red Hat Inc. (NYSE:RHT) stock declined 1.94 percent to $55.16 in pre-market trading. The stock has a 52-week low of $46.13, a 52-week high of $62.75 and $10.87 billion in market capitalization.

Zynga Inc. (NASDAQ:ZNGA) stock fell 1.41 percent to $2.80 in pre-market trading. The company stock rallied more than 14 percent in regular trading Monday.

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