Nokia Corporation Showing Volatile Moves NOK, NS, AMD, PSTI, GDOT)

Nokia Corporation (ADR) (NYSE:NOK) shares are showing very volatile session in the opening session and was recently trading lower by 0.88% to $2.81, off session high of $2.90 and session low is $2.71.

The countdown has started. In a few hours on Wednesday, Nokia Corporation (ADR)(NYSE:NOK) and Microsoft Corporation(NASDAQ:MSFT) will be set to unveil the Finnish company's most powerful smartphone in a bid to take a shot at toppling the dominance of Apple and Google in the segment.

Nokia is trying to take back its position as the world's largest maker of mobile devices, a position that it lost earlier this year to Samsung.

Microsoft on its part is a new entrant to the mobile phone market and is trying to gain a foothold in a sector where rival Apple is streets ahead of it.

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NuStar Energy L.P. (NYSE:NS) stock fell 4.55% to $48.66 after the company announced the pricing of an offering of 6,200,000 common units at a public offering price of $48.94 per unit. The partnership has granted the underwriters a 30-day option to purchase up to 930,000 additional common units. In the offering, the partnership expects that 490,000 common units will be sold to William E. Greehey, the Chairman of the board of directors of NuStar GP, LLC. The offering is scheduled to close September 10, 2012.

Advanced Micro Devices, Inc. (NYSE:AMD) stock declined 4.67% to $3.47 after the company’s stock was downgraded by equities researchers at Evercore Partners from an “equal weight” rating to an “underweight” rating in a report issued yesterday. They currently have a $4.00 target price on the stock.

Pluristem Therapeutics Inc. (NASDAQ:PSTI) shares climbed 12.17% to $4.70 in the early hour after the company announced that the Company's Placental eXpanded (PLX) cells were successfully administered to a third patient in Hadassah Medical Center; thus, a series of three life saving compassionate use treatments were completed. The outcome of those treatments potentially suggests that the Company's PLX cells may have significant potential to treat a range of indications of bone marrow diseases.

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Green Dot Corporation (NYSE:GDOT) stock jumped 11.10% to $12.31 after Piper Jaffray raised its rating on Green Dot Corporation from Neutral to Overweight with a reiterated $20 price target.

Additionally, The Law Offices of Todd M. Garber said it filed class action lawsuit consisting of all persons or entities, who purchased the securities of Green Dot Corp. in between January 26 and July 26, in the United States District Court for the Central District of California.