Walgreen, Staples, Restoration Hardware, Lululemon and eBay are big market movers

Stocks that moved substantially or traded heavily Thursday on the New York Stock Exchange and the Nasdaq Stock Market:

NYSE

Restoration Hardware Holdings Inc., up $7.81 to $93.99

The furniture and housewares company reported better-than-expected quarterly results and issued a positive outlook.

Walgreen Co., up $4.86 to $73.01

The drugstore chain operator announced abruptly that CEO Greg Watson plans to retire after the buyout of Alliance Boots closes.

Armstrong World Industries Inc., up $2.90 to $50.61

The flooring and ceiling products company said it will sell its European flooring business and cease funding its DLW subsidiary.

Nasdaq

Staples Inc., up $1.29 to $16.10

Activist investor Starboard Value disclosed a new stake in the office supplies retailer and boosted its stake in Office Depot Inc.

Lululemon Athletica Inc., up $4.26 to $50.96

The maker of yoga gear reported better-than-expected third-quarter profit and increased its full-year earnings forecast.

Urban Outfitters Inc., down $2.28 to $32.29

The clothing and apparel retailer provided an upbeat outlook for sales at stores open at least a year, which is a key measure of financial health.

eBay Inc.,, up $1.52 to $56.79

The online retailer is considering cutting 3,000 jobs, or almost 10 percent of its workforce, the Wall Street Journal reported.

The Advisory Board Co., up $6.81 to $44.57

The consulting company said it will buy the education-industry focused Royall & Co. for $850 million in a cash-and-stock deal.