Herbalife Ltd. (HLF) shares soared 15.66% in pre-market trading on Thursday, marking a significant upward movement for the health and wellness company.

The surge is primarily attributed to the announcement that global soccer icon Cristiano Ronaldo has invested $7.5 million to acquire a 10% equity stake in HBL Pro2col Software LLC, a Herbalife subsidiary that holds the company's AI-driven personalized health and wellness platform. Ronaldo's investment, which includes a commitment to provide services and sponsorship rights, signals strong confidence in Herbalife's technology and future growth prospects.

Further supporting the positive sentiment, Herbalife reported better-than-expected fourth-quarter 2025 revenue, with net sales rising 6.3% year-over-year to $1.3 billion. Analysts at Citi also raised their price target on the stock to $21 from $17 while maintaining a Buy rating. Additionally, the company announced plans to expand beta access for its Pro2col platform to select international markets beginning in 2026.