Check out which companies are making headlines before the bell:
Dish Network—The satellite TV operator saw revenue rise 3.6 percent in its latest quarter, compared to a year ago, even though overall subscriber numbers dropped. Dish now makes an average $86.01 per subscriber compared to $82.36 a year ago.
Actavis—The drug maker reported adjusted quarterly profit of $4.30 per share, above estimates of $3.93, with revenue also above Street forecasts on higher sales of its branded drugs in North America.
Rosetta Resources—Rosetta will be acquired by fellow energy producer Noble Energy in an all-stock transaction valued at $2.1 billion. Rosetta shareholders will receive 0.542 Noble shares for each share they now hold, an implied value of $26.62 per share.
Hilton Worldwide—The hotel operator announced a 90 million share secondary offering, with the shares coming from stockholders affiliated with Blackstone Group. Hilton will not receive any proceeds from the offering.
Sotheby's—The auction house reported adjusted quarterly profit of 7 cents per share, beating expectations for a breakeven quarter. Revenue also exceeded forecasts, as auction sales and commissions rose compared to a year earlier.
GoDaddy—Citi began coverage of the domain name registrar with a "buy" rating, saying it is positive on GoDaddy's sales and profitability outlook.
Cisco Systems—Pacific Crest upgraded the networking equipment maker to "overweight" from "sector weight," citing the beginning of a multi-quarter recovery driven by new product cycles.
Post Holdings—Citi downgraded the food maker to "neutral-high risk" from "buy," pointing to the potential negative effect of bird flu on the company's processed egg business.
Salesforce.com—Morgan Stanley removed the stock from its "Best Ideas" list, mentioning both the recent run-up on takeover talk, and what it sees as the low probability of a buyout deal.
Zillow—SunTrust upgraded the real estate website operator to "buy" from "neutral," saying Zillow will benefit over the long term from its dominant market position.
Goldman Sachs—The Wall Street Journal reported the firm is expected to pay $129.5 million to settle a lawsuit that accused several banks of foreign exchange market manipulation.
GlaxoSmithKline—Glaxo will collaborate with U.S. scientists to develop a cure for AIDS. Glaxo will invest $20 million to help fund a joint venture with the University of North Carolina.
Walt Disney—Disney's "Avengers: Age of Ultron" topped the weekend box office once again, with $77.2 million in North American ticket sales.
Toyota—The automaker is in talks with Mazda to expand their technology partnership, according to Reuters.
Blackstone—Blackstone's fee practices are under examination by the Securities and Exchange Commission, according to an SEC filing.
Charter Communications—Charter is reportedly in talks to arrange financing of up to $30 billion as it pursues a deal with Time Warner Cable. The Wall Street Journal also said both parties have reached out to cable operator Bright House Networks about buying it.