"Pump-and-dump scams are gaining more attention from criminals and companies like Microsoft for one simple reason: They work. Researchers at Purdue and Oxford Universities recently examined the dynamics of pump-and-dump and found that spammers could realize 5 percent returns in a single day."
So Microsoft is filing lawsuits against these unknown criminals in order to subpoena the information it needs to identify and pursue them.
I have a better idea. Why doesn't Microsoft sell these stocks short and force the price down causing a loss for spammers. Microsoft has the financial resources to do so and might even make a profit if they manage buy it all back lower.
There are obviously some problems with this. If Microsoft were to do this with every 'pump and dump' spam stock then the spammers would have already sold the stock short. So they need to do this randomly and unpredictably.
I'm not sure where these penny stocks are trading that are being pumped like this because I recently read somewhere that one of the major exchanges (was it NYSE?) had delisted or stopped trading in stocks that were being pumped in spam emails...
[...goes off for a while with Google...]
From internetnews.com: SEC Cracking Down on Spam 'Pump and Dump'
quote:
The SEC has suspended securities trading of 35 companies as part of a new crackdown on market manipulation via spam.
The SEC said in a statement that more than 100 million e-mails hyping small company stocks as "Ready to Explode," "Ride the Bull," and "Fast Money" were sent to addressees each week, which led to spikes in share price and trading volume.
The spam is a new-fangled version of a "pump and dump" scheme
...
For example, on Friday, Dec. 15, 2006, shares in Apparel Manufacturing Associates, Inc. (APPM) closed at 6 cents, with a trading volume of 3,500 shares.
After a weekend spam campaign proclaiming, "Huge news expected out on APPM, get in before the wire, We're taking it all the way to $1.00," trading volume on Monday, Dec. 18 hit 484,568 shares with the price spiking to over 19 cents a share.
Two days later the price climbed to 45 cents per share. By Dec. 27, the price was back down to 10 cents a share with a trading volume of 65,350 shares.
The SEC'S action is the latest step in "Operation Spamalot," an effort by the SEC to shield investors from potentially fraudulent spam that pumps up small company stocks...