Check out which companies are making headlines before the bell:
MeadWestVaco, Rock-Tenn—The two packaging companies will combine in a deal creating an entity with nearly $16 billion in annual sales. MeadWestVaco shareholders will receive stock in the new company, while Rock-Tenn holders will have a choice of stock or cash.
Post Holdings—The cereal maker will acquire privately-held MOM Brands For $1.15 billion, the vast majority of that in cash.
Axis Capital, PartnerRe—The two reinsurance firms will merge to create a company with a combined market value of $11 billion. PartnerRe shareholders will receive 2.18 shares of Axis Capital for each share they now own.
DR Horton—The home builder beat estimates by 5 cents with fiscal first quarter profit of 39 cents per share. Revenue was also above estimates, as the company saw a 35 percent jump in new orders, a 29 percent increase in closings, and an almost 7 percent rise in average sale prices.
Roper Industries—The appliance maker posted a mixed quarter, beating estimates by 6 cents with adjusted quarterly profit of $1.85 per share, but missing on the top line.
AT&T—The telecommunications company is buying Nextel Mexico for $1.875 billion, less any debt outstanding at the closing of the transaction.
Garmin—The company was upgraded to "outperform" from "sector perform" at RBC, based on expected strong unit growth in wearables.
UPS—Barclays downgraded UPS to "equal weight" from "overweight," noting that an increased focus on customer service has put earnings growth on the back burner as a priority, although Barclays is quick to add that it does not necessarily disagree with those priorities.
Ocwen Financial—The residential and commercial mortgage provider agreed to pay a $2.5 million penalty to settle a mortgage servicing case with the state of California. Separately, Reuters reports major mortgage bond investors have taken the first legal step toward suing Ocwen, saying it failed to properly collect payments on $82 billion in mortgages.
Shire—The drug maker received FDA approval for a drug known as Natpara, designed to treat a condition known as hypoparathyroidism.
Cablevision—The cable company will launch a wireless internet phone service next month known as "Freewheel," which will run on any WiFi connection.
Google—The tech giant signed a deal to distribute NFL video, according to a Re/code report.
Generac Holdings—The maker of backup generators could rise in Monday trading, as Generac often does when major storms hit the Northeast.
United Continental, Southwest, Delta Air Lines, and American Airlines Group—These and other airlines will be on watch as investors wait to see how many flights are canceled due to the Northeast storm and the impact on earnings.