These are this Thursday’s top day trader and active trader alerts:

Akamai Technologies Inc. (NASDAQ: AKAM) rose after its Q1 profit rose 10% and announced a $150 million add-on to its stock buyback plan. Shares are trading up 11% at $36.81 on over 125,000 shares.  The prior 52-week trading range was $15.86 to $34.86.

ATS Medical Inc. (NASDAQ: ATSI) is the biggest gainer of the trading day as Medtronic is acquiring it for $4.00 per share after a $2.59 close.  Shares are trading up 53% at$3.96 on over 3 million shares, so it is already close to 15-times normal trading volume.

Baidu Inc. (NASDAQ: BIDU) is trading up after Q1 earnings rose over 100% on acceptance of its new ad system and on Google woes in China. Shares are trading up 15% at $715.92. The prior all-time high and 52-week high is $651.50.  We have barely seen 100,000 shares in teh pre-market, but it only trades 1.5 million shares.

Dune Energy Inc. (AMEX: DNE) is trading higher after reaching an agreement in principle to sell its interests in the South Florence field for $30 million to a private party.  It also gave its drilling plan for 2010.  Shares are trading up 11% at $0.27 on about 40,000 shares.  A big percentage gainer, but tiny volume and a tinier share price.

Eastman Kodak Co. (NYSE: EK) is trading lower despite the notion that it swung to a first-quarter profit from recent patent deals and due to a revenue rebound.  Still, this was short of estimates, so even good news is not good enough news for Kodak.  Shares are trading down 6.6% at $7.80 on about 150,000 shares.

E*Trade Financial Corp. (NASDAQ: ETFC) is lower after affiliates of Citadel filed to sell up to 170 million shares of common stock.  Shares are trading down 4.9% at $1.75 on over 5 million shares, but this was down almost 7% in some trading last night.

First Solar Inc. (NASDAQ: FSLR) has caught 4 analyst upgrades after its earnings and guidance beat expectations on order pushouts.  Shares are trading up 8.7% at $19.26 on active trading of about 215,000 shares.

Green Mountain Coffee Roasters Inc. (NASDAQ: GMCR) is a disappointment despite that its earnings rose 90% and despite a raised outlook for the year.  Nothing goes up forever. Shares are trading down 10.8% at $77.50 on about 135,000 shares of stock.  The 52-week range is $34.73 to $99.61, so this is now down over 20% from highs.

Oshkosh Corp. (NYSE: OSK) is still a winner on military-ATV sales as earnings sailed past estimates.  Shares are indicated up 4.6% at $44.40 on thin trading volume.  The 52-week range is $9.25 to $44.57.

Palm Inc. (NASDAQ: PALM) is a top gainer this morning and up over 25% above $5.80 after H-P announced it would buy the smartphone maker for $5.70 per share.  Shares are trading up 26% at $5.83 on over 35 million shares with almost 45 minutes still to go before the open.  This traded over 50 million shares alone in the after-hours session last night.

Synovus Financial Corp. (NYSE: SNV) is lower after it priced 255 million shares in a common stock offering at $2.75 per share, which is effectively a 14% discount to the closing bell price.  It also sold 12 million tangible equity units at $25.00 each. Shares are trading down 7.5% at $2.94 on over 38 million shares.

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