NEW YORK (AP) -- Stocks that moved substantially or traded heavily Thursday on the New York Stock Exchange and the Nasdaq Stock Market:

NYSE

Hewlett-Packard Co., up $3.63 at $24.86

The computer company's second-quarter results beat Wall Street expectations. It also boosted its full-year earnings forecast.

Ralph Lauren Corp., down $4.37 at $183.69

The luxury company posted a 35 percent jump in its fourth-quarter profit, but economic challenges in the U.S. and abroad cut into sales.

The Buckle Inc., down $1.72 at $55.42

The retailer, known for denim, reported that its net income fell slightly for the first quarter as operating expenses rose.

Nasdaq

Pacific Sunwear of California Inc., up 29 cents at $3.21

The teen retailer's fiscal first-quarter revenue came in ahead of expectations and it issued a solid forecast for the second quarter.

The Children's Place Retail Stores Inc., up $1.42 at $52.89

The children's clothing retailer posted first-quarter results that beat expectations and it boosted its full-year profit forecast.

Dollar Tree Inc., up $1.82 at $50.19

The discount retailer said that its net income rose 15 percent during the first quarter as consumers spent more at its stores.

Quality Systems Inc., down 23 cents at $18.59

The health care information systems developer posted a fiscal fourth-quarter loss, mostly due to a fresh assessment of asset values.

Rue21 Inc., up $7.84 at $41.96

The clothing and accessories company has agreed to be taken private by private equity firm Apax Partners in a $1 billion deal.