Shares in the world's largest coffee chain slid 1.9 percent after hours despite a stronger-than-expected 7 percent jump in sales at established U.S. stores.
Net income for the company's fiscal second quarter, ended April 3, rose to $261.6 million, or 34 cents per share, from $217.3 million, or 28 cents per share, a year earlier.
Analysts on average were looking for a profit of 34 cents for the latest quarter, according to Thomson Reuters I/B/E/S.
Starbucks forecast earnings of $1.46 to $1.48 a share in fiscal 2011, up from $1.44 to $1.47 previously but below the $1.50 analysts had expected on average.
(Reporting by Lisa Baertlein; Editing by Steve Orlofsky)