Shares of

Computer Sciences

(CSC)

skyrocketed again Tuesday on reports that a takeover of the company would garner a 25% premium to the stock price.

Computer Sciences shares were recently trading at $58.66, up $7.41, or 14.5%, on volume that was more than three times as large as the daily average volume in the last three months. That climb builds on big gains a week ago after news of a potential buyout first broke.

The run Tuesday came after

The Wall Street Journal

reported that

Lockheed Martin

(LMT) - Get Report

and three private equity firms are considering a purchase price of $64 to $65 a share for El Segundo, Calif.-based Computer Sciences, an IT services and outsourcing firm with 78,000 employees.

That price represents a premium of about 25% on the closing share price Monday of $51.25.

The

Journal

has reported that Lockheed Martin is interested in CSC's government business, which accounts for about one-third of sales, and that three private equity firms -- Texas Pacific Group, Warburg Pincus, and Blackstone Group -- have their eyes on the company's corporate business.