). Armstrong World is gaining more than 11% today after the company reported better than expected earnings, and upped its outlook. The maker of flooring products said it earned excluding items, 83 cents a share on revenues of $739.8 million. Analysts expected 64 cents per share on revenues of $761.1 million. The company also raised its outlook, saying it now expects to earn $1.69-$1.79 per share, up from the $1.55-$1.75 per share it expected. WRLS is up sharply today, after the company announced a special dividend of $1 per share. It's up $1.79 per share to $5.84, a gain of more than 44%.