Check out which companies are making headlines before the bell:
Hilton Worldwide—The hotel operator beat estimates by 1 cent with adjusted quarterly profit of 18 cents per share. Revenue also was slightly above forecasts as well. Hilton raised its full-year forecast amid better-than-expected increases in revenue per available room and other key financial measures.
Newell Rubbermaid—The household products maker earned an adjusted 58 cents per share for the third quarter, 3 cents above estimates, though revenue was short of forecasts. Newell said it made good progress during the quarter on revamping its cost structure, and said it would pursue a sale of its Calphalon retail outlet stores and its kitchen electrics business.
Aviv REIT—The nursing facility operator will merge with Omega Healthcare in a stock swap agreement that values Aviv at $3 billion. Aviv shareholders will receive 0.90 Omega shares for each share they now own, valuing the deal at $34.97 per share. That represents a 16.2 percent premium for Aviv shareholders over Thursday's closing price.
Royal Bank of Scotland—The bank set aside $640 million to cover potential fines for manipulating currency markets. It also said further fines for past misconduct were possible.
Starbucks—Investors are registering disappointment as earnings merely matched estimates and sales came in below forecasts. The coffee chain did raise its fiscal 2015 outlook and increase its quarterly dividend to 32 cents per share from 26 cents.
Citigroup—The bank adjusted its previously reported third quarter profit to 88 cents per share from $1.07, due to increases in legal costs.
LinkedIn—The social network beat estimates by 5 cents with adjusted quarterly profit of 52 cents per share, with revenue also above forecasts. The networking company saw increased use of its services by businesses to seek and hire new employees.
GoPro—The high-definition camera maker reported adjusted quarterly profit of 12 cents per share, 4 cents above estimates, and saw revenue beat analyst projections. GoPro saw both increased sales of its cameras as well as higher profit margins.
Groupon—The daily deals provider's latest quarterly results came in 2 cents above estimates at an adjusted 3 cents per share, with revenue well above consensus. Groupon saw billings and its customer base grow during the quarter.
Boston Beer—The maker of Sam Adams beer reported quarterly earnings of $2.79 per share, beating estimates of $2.32. Revenue was also above consensus, and the brewer said it would be concentrating next year on increasing sales of new brands launched this year, rather than continuing a record pace of new offerings.
Expedia—The online travel company beat estimates by 19 cents with adjusted quarterly profit of $1.93 per share, as Expedia's bookings rose.
Mylan—The drugmaker came in 2 cents above estimates, reporting adjusted quarterly profit of $1.16 per share. Mylan also raised its full-year earnings guidance, as it comes closer to finalizing its pending acquisition of the generic drug business of Abbott Laboratories.
Outerwall—The parent of Redbox and Coinstar earned an adjusted $1.44 per share for its latest quarter, 33 cents above estimates, though revenue fell below forecasts. Outerwall said it made significant progress in its drive to improve efficiency.
Tempur Sealy—The company fell a penny short of estimates with adjusted quarterly profit of 88 cents per share, even though revenue exceeded analyst forecasts. The mattress maker's results were impacted by costs associated with its purchase of Sealy a year ago.
Twitter—The social network reassigned consumer product chief Daniel Graf just six months after he was hired from Google. Reports say he'll now be in charge of strategic initiatives, with revenue product chief Kevin Weil taking over Graf's duties.