10 Fastest Growing Mid Cap Stocks to Buy Now

4. Planet Fitness, Inc. (NYSE:PLNT)

Planet Fitness, Inc. (NYSE:PLNT) is one of the fastest growing stocks.

TheFly reported on February 26 that Morgan Stanley lowered its price target on PLNT to $117 from $128 while maintaining an Overweight rating on the shares. Due to timing-related difficulties and a slower start to the year, the firm lowered its 2026 earnings per share outlook. Morgan Stanley thinks the business has the ability to pick up steam again if these short-term difficulties subside, despite the fact that short-term visibility seems restricted.

Earlier in February, Planet Fitness, Inc. (NYSE:PLNT) announced plans to further grow in Mexico, with the signing of a new franchise deal with Impulso Gym. The collaboration will help the company expand its presence in northern Mexico by facilitating the opening of new sites in Tijuana and Mexicali. With 47 locations in 14 Mexican states, Planet Fitness is still expanding its presence in the nation. The business restated its commitment to expanding access to reasonably priced exercise choices in foreign markets and cited Mexico’s low gym membership penetration as a significant opportunity for growth.

Planet Fitness, Inc. (NYSE:PLNT) is a leading U.S.-based fitness center franchisor and operator known for its low-cost memberships and “Judgement Free Zone” philosophy. The company operates thousands of gyms and offers affordable, accessible fitness options primarily targeting casual and first-time gym users.