Prices dip on concerns over emerging market growth, euro weakness. Energy stocks bear the brunt.

Airvana Inc., which makes mobile broadband network products, on Friday predicted fiscal first-quarter revenue of $2.5 million to $3 million, 67 percent to 72 percent below the same period last year.

Weight Watchers International Inc. said its board declared a quarterly dividend of 17.5 cents.

WASHINGTON (AP) -- One by one, Democratic fence-sitters began choosing sides Friday, and the long, turbulent struggle over landmark health care legislation tilted unmistakably in President Barack Obama's direction....

Boeing is betting on a pick up in air travel, and so are investors.