Celsius Holdings surged on Friday as investors appeared reassured by the company's potential growth prospects, given its record full-year revenue results and its latest acquisition of a rival energy drink brand.

Celsius shares are up more than 30% after its quarterly results topped estimates and it announced plans to buy drink maker Alani Nu.

Energy drink maker Celsius is paying $1.8 billion to buy rival Alani Nu, a brand that has been propelled by social-media influencers and pitches itself as a low-cal fitness aid.