The top pre-market NASDAQ Stock Market gainers are: Origin Agritech, Hansen Medical, First Solar, eBay, and Siliconware Precision Industries. The top pre-market NASDAQ Stock Market losers are: Aeterna Zentaris, Star Scientific, Vodafone Group, Lululemon Athletica, and Amazon.com.

Gainers

Origin Agritech Ltd. (SEED) stock jumped 7.84 percent to $4.40 in the pre-market trading.

Hansen Medical, Inc. (HNSN) stock grew 7.31 percent to $3.23 in the pre-market trading.

First Solar, Inc. (FSLR) stock increased 7.08 percent to $138.58 in the pre-market trading.

eBay Inc. (EBAY) stock gained 4.67 percent to $32.30 in the pre-market trading. Jefferies said The Federal Reserve's decision on debit interchange fees seems to exclude eBay Inc.'s (NASDAQ: EBAY) PayPal from being treated as a payment card network. The brokerage believes that PayPal will not be affected by the new cap rules, (except for its co-branded Mastercard debit cards, which are immaterial to financial results). The Fed's proposal to cap interchange fees to $0.21/$0.22 (from about $0.44) should result in lower processing costs on debit transactions for PayPal. While eBay does not break out the funding mix, we believe debit accounts for 10 percent to 15 percent of PayPal's total transactions, with the remainder being ACH and credit, said Youssef Squali, an analyst at Jefferies.

Siliconware Precision Industries Co. Ltd. (SPIL) stock rose 4.17 percent to $6.24 in the pre-market trading.

Losers

Aeterna Zentaris Inc. (AEZS) stock fell 4.98 percent to $2.10 in the pre-market trading. The company said it has entered into an At-the-Market (ATM) Sales Agreement, dated June 29, 2011, with McNicoll, Lewis & Vlak LLC, under which the company may, at its discretion, from time to time during the 24-month term of the agreement, sell up to a maximum of 9.5 million of its common shares through ATM issuances on the NASDAQ Stock Market. McNicoll, Lewis & Vlak will act as sales agent for any sales made under the ATM. The common shares will be sold at market prices prevailing at the time of the sale of common shares, and, as a result, prices may vary. In connection with the signature of the ATM Sales Agreement with McNicoll, Lewis & Vlak, the company has filed a prospectus supplement dated June 29, 2011 to its U.S. shelf prospectus, dated July 15, 2010, forming part of its U.S. registration statement on Form F-10 with the SEC as well as a prospectus supplement to its Canadian final base shelf prospectus dated July 15, 2010.

Star Scientific, Inc. (CIGX) stock declined 4.48 percent to $4.26 in the pre-market trading.

Vodafone Group plc (VOD) stock decreased 1.61 percent to $26.33 in the pre-market trading.

Lululemon Athletica Inc. (LULU) stock declined 1.53 percent to $109.97 in the pre-market trading. Sterne Agee & Leach downgraded its rating on shares of Lululemon Athletica to neutral from buy, while withdrawing its price target. We are still confident in the company's long-term growth prospects but that its share price appears fully valued, having passed her price target of $110. The stock closed at $111.68 on Wednesday. We withdraw our price target. The stock has enjoyed a huge run and we would recommend awaiting a better entry point for new investors, said Jennifer Milan, an analyst at Sterne Agee & Leach, as quoted by the Associated Press.

Amazon.com Inc. (AMZN) stock movecd down 0.97 percent to $202.20 in the pre-market trading.