2. -- The economic calendar in the U.S. Tuesday includes the Case-Shiller 20-city Index for February at 9 a.m. EDT, Chicago PMI for April at 9:45 a.m., and consumer confidence for April at 10 a.m.
3. -- U.S. stocks on Monday closed with gains after a report showed an improvement in home contract signings, a positive sign on national housing demand and economic momentum. The S&P 500 added 0.7% to close at 1,593.60.
4. -- Best Buy ( BBY), the electronics retailer, is exiting Europe by agreeing to sell its 50% stake in a joint venture with Europe's Carphone Warehouse back to Carphone Warehouse for about $775 million. Best Buy bought 50% of the mobile-phone company's European retail operations for about $2.1 billion in 2008 as it looked to expand across Europe. But the venture proved costly, and Best Buy had to abandon plans to build megastores on the continent.
5. -- Drug giant Pfizer ( PFE) said first-quarter net income rose 53% but adjusted earnings fell to 54 cents a share from 57 cents a share a year earlier. Revenue fell 9% to $13.5 billion. Analysts were expecting Pfizer to report earnings of 55 cents a share on revenue of $13.99 billion.
6. -- British oil company BP ( BP) posted underlying replacement cost net profit of $4.22 billion in the first quarter, down from $4.65 billion a year earlier. But the first-quarter numbers topped analysts' estimates.
7. -- Swiss banking giant UBS ( UBS) posted first-quarter net profit of $1 billion, a swing from a $2 billion loss in the fourth quarter of 2012 thanks to strong investment banking and wealth management.
8. -- Herbalife ( HLF) on Monday posted earnings that beat Wall Street's first-quarter estimates and raised earnings guidance. The nutrition specialist reported revenue of $1.1 billion, a 17% increase over the prior year's quarter, topping analysts' estimates of $1.07 billion. Herbalife also enjoyed volume growth of 13% from the same period last year. Excluding items, Herbalife earned $1.27 a share, up from 88 cents a share in the prior year's quarter. Analysts were looking for earnings of $1.07 a share.