Hot Stocks of the Week: HRS LEH UAUA WMT NCC

Early Monday, Harris Chairman, President and Chief Executive Howard Lance said in a statement that he and the company's board of directors have "great confidence" in the Melbourne, Fla., company and dismissed media reports that it was planning a sale or a merger.

Shares of Harris lost $10.18, or 15.5 percent, to finish the day at $55.60, with shares trading more than seven times their average volume.

On Friday, Harris shares gained 1 cent, but still ended the week down 13.1 percent.

A report from the Wall Street Journal on Tuesday that Lehman Brothers Holdings Inc. was considering raising billions of dollars to shore up its capital base rocked shares of the investment bank. In the afternoon, analysts said rumors were swirling about the bank trying to borrow from the Federal Reserve.

The bank later denied those rumors, but the reports still sent shares falling $3.22, or 9.5 percent, to $30.61. Shares traded at nearly four times their normal volume.

The stock fell $1.56, or 4.6 percent to $32.29 Friday, ending just 4.6 percent down from Monday's close of $33.83.

On Wednesday, shares of United Airlines parent UAL Corp. got a boost after the ailing carrier said it was cutting up to 1,100 more jobs, removing an additional 70 airplanes from its fleet and slashing domestic capacity.

The job cuts at the nation's No. 2 carrier came on top of 500 previously announced reductions. Taken together, the layoffs amount to nearly 3 percent of its 55,000 workers worldwide.

Shares advanced 61 cents, or 7.2 percent, to $9.14 Wednesday. However, the stock erased those gains on Friday as oil prices surged more than $10 to a record above $138. Shares plunged $1.47, or 14.5 percent, to $8.64 on Friday, finishing the week up 1.3 percent from Tuesday's close of $8.53.