Rackable Rockets on Sun Rumor

Rackable Systems(RACK Quote) shares shot up Thursday as the server maker became the latest company to get swept up in a frenzy of speculation about acquisitions in the tech sector.

While none of the tech buyout rumors has borne out so far, investors cottoned to the newest chatter and sent Rackable shares up more than 11%, or $1.82, at $18.28 in trading.

Earlier this week, investors ran up shares of Palm(PALM Quote) and Gateway(GTW Quote) in hopes that the companies would be acquired. Both stocks have since given back the gains, as the prospects of the rumored deals appeared less likely. ...