Credit Suisse Group, Orexigen Therapeutics, Aixtron, New Oriental Education & Tech, Arena Pharmaceuticals, Ericsson, Saks and American Capital Agency Corp are among the companies whose shares are moving in pre-market trading Wednesday.

Credit Suisse Group AG (CS) stock surged 5.71 percent to $18.71 in pre-market trading after the company unveiled plans to boost its capital base by 15.3bn Swiss francs, by issuing debt, selling assets and cutting costs. The bank also said its second quarter net income rose 3.6 percent to 815 million Swiss francs from 787 million Swiss francs in the same period last year. Credit Suisse will release the detailed second quarter earnings report July 24.

Orexigen Therapeutics, Inc. (OREX) stock surged 5.04 percent to $7.50 in pre-market trading. VIVUS Inc announced Tuesday that it had acquired the U.S. Food and Drug Administration (FDA) approval for its obesity drug Qsymia.

Aixtron SE (AIXG) stock advanced 1.86 percent to $13.15 in pre-market trading. Earlier this week, the company stock was lowered to a hold rating from buy rating at ThinkEquity.

New Oriental Education & Tech Group (EDU) stock rose 1.85 percent to $14.89 in pre-market trading. The company stock slumped more than 34 percent in regular trading Tuesday after Glancy Binkow & Goldberg LLP announced that it was investigating potential claims on behalf of purchasers of the securities of EDU concerning possible violations of federal securities laws.

Arena Pharmaceuticals, Inc. (ARNA) slumped 9.50 percent to $10.00 in pre-market trading on news that its rival VIVUS had acquired the FDA approval for its obesity drug Qsymia. Last month, Arena got approval from the FDA for its obesity drug called Belviq, the first prescription weight-loss pill to receive FDA approval since 1999.

Ericsson (ERIC) stock plunged 3.37 percent to $8.03 in pre-market trading. The company reported the second quarter net income of 0.34 Swedish kronor per share, down from 0.96 Swedish kronor in the same period a year ago.

Saks Inc. (SKS) stock declined 2.83 percent to $9.97 in pre-market trading. The stock has a 52-week low of $7.67, a 52-week high of $12.14 and $1.63 billion in market capitalization.

American Capital Agency Corp. (AGNC) stock fell 2.58 percent to $34.38 in pre-market trading. AGNC announced Tuesday that it planned to make a public offering of 32,000,000 shares of its common stock.

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