NEW YORK (AP) _ Stock prices have opened higher in light trading. The Dow Jones industrial average is ahead 22 points in today's early going. Advancers on the New York Stock Exchange hold a 4-3 lead over decliners.

The Nasdaq Composite Index is up 29 points and the S&P 500 Index is up five points.

Today's session begins with more earnings worries for the market.

Lockheed Martin has added its name to the list of companies forecasting weakness in profits.

The athletic shoemaker Reebok has issued a profit warning of its own.

At the same time, the latest check-up on the economy shows a healthy rate of growth for third quarter gross domestic product.

Underlying today's activity, analysts expect to see rather thin trading ahead of the Christmas holiday.