Editor's note: In this feature from
, we highlight lists of stocks that have made new highs, lows or seen other unusual activity.
Research in Motion
, maker of the Blackberry, surged to $159.89 Thursday, after a Merrill Lynch analyst upped his target price for the company.
Biggest % Gainers
jumped 36% to $5.34 after the gaming technology company posted its first profitable quarter since venturing into the gaming technology business. The company posted first-quarter profits of 3 cents a share on revenue of $9.3 million.
Rising on Unusual Volume
. Shares of
were trading at volume 137% higher than normal and closed 2% higher at $30.36. Speculation of more acquisitions in the telecommunications industry sparked the heavy activity.
: Daniel Loeb's Third Point hedge fund lowered its stake in biopharmaceutical concern
(ACOR - Get Report)
by more than half, to 4.1%. Third Point had earlier asked the company's management to retain an investment bank for the purposes of exploring a sale.
Biggest % Losers
experienced substantial loses for the second consecutive day, plunging 21% to $1.50 after Polyheme, a blood substitute, revealed disturbing news. In phase III trials, Polyheme, the company's only product, was found to highly increase the rate of heart attacks in patients given the blood substitute.
Varian Medical Systems
, a medical device maker, slumped to $40.24 after announcing it had acquired Bio-Imaging Research, an X-ray imaging company, for $21 million.
Stocks With Unusual Option Activity
(AAPL - Get Report)
, closing Thursday at $110.69 and awaiting the launch of the iPhone later this year, was experiencing unusual options activity.
Forum of the Day
where does one start when choosing a stock?
Do You Know the Answer?
(COP - Get Report)
a wise investment?
If so, jigneshpatel asks, what would be the right price to open a position?
And finally, try picking a random portfolio suited to do-it-yourselfers with more detailed analysis at
I'm Feeling Lucky