Volume Spike Investor

Arc Sight, Inc. (NASDAQ: ARST) is up 24.73% at 8:35 AM EST this morning to $43.78 on news that they company will be bought by Hewlett-Packard Co. for a total of $1.5 billion in cash, or $43.50 a share.  The company has also traded 1,429,342 shares this in premarket trading, compared with the average of [...]

ArcSight, Inc. (NASDAQ: ARST) jsut saw a volume explosion late in the trading day after the WSJ  announced that ArcSight was up for auction and that it could fetch $40 per share.  Whether that comes is another issue, but shares are up 28% at $36.37 on more than 1.9 million shares.  Average volume is only [...]