Obagi Medical Products, Arm Holdings, Silver Wheaton, Banco Bilbao Vizcaya, Newmont Mining, Arena Pharmaceuticals, Goldcorp, CYS Investments and Research In Motion are among the companies whose shares are moving in pre-market trading Wednesday.

Obagi Medical Products, Inc. (OMPI) stock surged 3.61 percent to $17.20 in pre-market trading on rumors about the company's acquisition. Cantor Fitzgerald's analyst Irina Rivkind said Tuesday that the company could be attractive to "multiple suitors".

Arm Holdings plc (ARMH) stock surged 3.17 percent to $22.76 in pre-market trading. The stock has a 52-week low of $21.96, a 52-week high of $31.55 and $10.12 billion in market capitalization.

Silver Wheaton Corp. (SLW) stock gained 2.22 percent to $26.70 in pre-market trading. The company stock plunged more than 4 percent in regular trading Tuesday.

Banco Bilbao Vizcaya Argentaria SA (BBVA) stock gained 1.62 percent to $6.26 in pre-market trading. BBVA stock was upgraded to "buy" rating from "reduce" rating at Nomura.

Newmont Mining Corp. (NEM) stock advanced 1.36 percent to $47.05 in pre-market trading. The stock has a 52-week low of $43.23, a 52-week high of $72.42 and $23.00 billion in market capitalization.

Arena Pharmaceuticals, Inc. (ARNA) stock plunged 3.47 percent to $11.40 in pre-market trading. The stock has a 52-week low of $1.23, a 52-week high of $13.50 and $2.16 billion in market capitalization.

Goldcorp Inc. (GG) stock plunged 3.40 percent to $35.50 in pre-market trading. The company lowered its fiscal 2012 gold production guidance to a range of 2.35 to 2.45 million ounces from prior estimate of 2.6 million ounces.

Research In Motion Ltd. (RIMM) stock fell 2.33 percent to $7.12 in pre-market trading. The stock has a 52-week low of $7.14, a 52-week high of $33.54 and $3.67 billion in market capitalization.

CYS Investments Inc. (CYS) stock declined 2.33 percent to $13.81 in pre-market trading. The company announced Tuesday that it planned s to make a public offering of 30,000,000 shares of its common stock.

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