This is what you need to know before the bell:
2. U.S. stock futures were pointing to slight gains on Monday as geopolitical tensions were making for a nervous Wall Street. European and Asian stocks traded mixed.
3. BHP Billiton (BHP) - Get Report could create $46 billion in additional value for shareholders by spinning off its U.S. oil business, unify its listings and increasing capital returns, according to hedge fund Elliott Management.
4. Mondelez International (MDLZ) - Get Report is preparing to look for a successor to its CEO, Irene Rosenfeld, as the snack giant faces pressure from restive shareholders and the broad shift to healthier eating habits
5. Spain's Sergio Garcia, 37, held off a late charge by Justin Rose to win the 81st Masters on Sunday after one playoff hole.