Concorde International Group (CIGL) shares were 46% higher pre-bell Wednesday, adding to Tuesday's gains.

Silicon Laboratories (SLAB) stock was up 25% after the company agreed to be acquired by Texas Instruments (TXN) in a roughly $7.5 billion deal.

Enphase Energy (ENPH) shares were 23% higher, a day after the company reported Q4 non-GAAP earnings and revenue that topped analysts' estimates and issued Q1 guidance that also beat Wall Street projections.

Digital Turbine (APPS) stock was up 21% premarket after the company reported late Tuesday higher fiscal Q3 non-GAAP earnings and revenue.