TAL Education Group (TAL) shares slumped 12% in recent Thursday premarket activity, after it posted lower fiscal Q4 non-GAAP earnings from a year earlier.

International Business Machines (IBM) stock was down 7%, a day after it posted lower Q1 non-GAAP earnings year over year.

Nokia (NOK) shares slipped 7.5% after the company reported lower Q1 comparable earnings and net sales on an annual basis.

Columbia Banking System (COLB) stock retreated more than 3% after it said it will acquire Pacific Premier Bancorp (PPBI) in an all-stock deal valued at about $2 billion.