Planet Fitness Inc. (PLNT) shares faced a pre-market plunge of 8.48% on Tuesday, following the company's release of its 2025 earnings outlook that pointed to slower growth compared to analyst expectations.

While Planet Fitness reported strong Q4 2024 results, with earnings and revenue exceeding estimates, investors reacted negatively to the company's guidance for 2025. Specifically, Planet Fitness projected its adjusted earnings per share to grow in the range of 11% to 12% for the year, falling short of the consensus forecast of around 15% growth.

Additionally, the company's outlook for same-store sales growth of 5% to 6% in 2025 also trailed analyst expectations of approximately 6.5%. The disappointing guidance, coupled with concerns over slowing growth momentum, likely triggered the sharp sell-off in Planet Fitness shares during the pre-market session.