Stryker Corp.’s SYK +1.20% first-quarter earnings rose 14% as the medical-device maker saw sales of its hip and knee replacements increase, providing further evidence that the orthopedic market may be picking up. The company and other orthopedic manufacturers like Biomet Inc. and Zimmer Holdings Inc. (ZMH) have been affected as patients postponed elective surgeries such as hip and knee replacements... 

Coinstar Inc. CSTR -2.91% raised its earnings and revenue forecasts for its first quarter and full year, saying it experienced increased consumer demand at its Redbox movie rental kiosks, especially for titles like “Moneyball” and “Puss and Boots.” The company said it expects first-quarter core earnings of $1.36 to $1.40 a share on revenue of $567 million to $569.2 million.... 

SAN FRANCISCO (MarketWatch) — Mobile phone heavyweight Samsung Electronics Co. (SSNHY, 005930.SE) is playing a more hands-on role in the advertising on its devices, underlining the growing potential many companies see in mobile ads. Samsung plans to announce Tuesday that it’s adding a mobile phone advertising exchange platform to its internal device ad efforts, which are dubbed AdHub. The... 

Wendy’s Co. WEN -1.30% has been working with its chicken and pig suppliers to broker new improvements in the treatment of animals, the food service chain said Friday. Under those changes, the company said one of its chicken suppliers has installed a low atmospheric pressure system, called LAPS, that permanently knocks a chicken unconscious before handling, replacing what it said is the industry’s... 

Krispy Kreme Doughnuts Inc. KKD +1.56% swung to a fiscal fourth-quarter profit on stronger same-store sales and as the company posted a substantial tax credit. Shares rose 5.2%, to $8.93 after hours, as the company posted the $139.6 million in net deferred tax assets, saying it is likely to continue generating taxable income amid substantially improved performance, so a substantial portion of the tax... 

Urban Outfitters Inc.’s URBN -5.35% fiscal fourth-quarter earnings sank 48% as the apparel retailer’s margin were harmed by greater markdowns to clear year-end inventories, but overall sales continued to climb. Shares were up 4.6% at $30.88 after hours as the company said its rate of full-priced sales improved since the fourth quarter as it seeks to re-establish its full-price selling penetration.... 

Pandora Media Inc.’s P -21.93% fourth-quarter loss widened as the Internet-radio operator’s costs increased, masking improved revenue. Shares dropped 13% to $12.40 as the company also issued first-quarter and full-year guidance that sharply missed analyst expectations. For the current quarter, Pandora expects an adjusted loss of 18 cents to 21 cents a share on revenue between $72 million... 

NEW YORK (MarketWatch) — Skullcandy Inc. SKUL -1.01% swung to a better-than-expected fourth-quarter profit as the music-headphone maker reported double-digit percentage sales growth in the U.S. and abroad. Skullcandy, founded in 2003, first sought to court the action sport and youth crowd by selling its headphones in specialty retailers focused on sports such as skateboarding but has since expanded... 

Yamana Gold Inc.’s (AUY, YRI.T) fourth-quarter earnings fell 29% as a result of an impairment charge, though revenue increased. The company’s adjusted profit beat analyst expectations. Wednesday, the company also raised its annual dividend by 10% to 22 cents a share. The company increased its payouts twice in 2011. The Canadian mining company has posted stronger revenue and adjusted profits... 

TAIPEI -(MarketWatch)- Chunghwa Telecom Co. CHT -0.93% , Taiwan’s largest telephone company by revenue, said Wednesday it expects its net profit to fall 16.8% this year to NT$39.2 billion (US$1.33 billion) from NT$47.1 billion in 2011 as costs rise due to regulatory changes and increased competition. The company said in a statement its revenue will likely fall 1.9% this year to NT$188.9 billion...