(Reuters) - DuPont DD.N boosted its 2012 forecast and announced a $1 billion stock buy back on Tuesday.
The chemical company now expects profit this year to be at the high end of its forecast to earn $3.25 to $3.30 per share.
Analysts expect earnings of $3.29 per share, according to Thomson Reuters I/B/E/S.
Shares of DuPont rose 2.2 percent to $44.65 in after-hours trading.
Reporting by Ernest Scheyder; Editing by Leslie Gevirtz