For years, Planet Fitness, Inc (NYSE:PLNT) looked like one of the cleanest growth stories in fitness—low prices, rapid expansion, and a model built to scale.

That story may be getting tougher.

According to a note from TSOH Investment Research, the company may have already pulled many of the levers that drove its outsized growth.

A Model That Worked—Until Now

Planet Fitness built its edge on a high-value, low-price model, with memberships starting at $15 per month and premium tiers still well below industry averages. That positioning helped drive scale—ending FY25 with about 20.8 million members, growing roughly 11% annually over the past decade.

But most of that growth came from new store openings, not higher usage per location—a key detail as expansion matures.

Growth Levers Are Getting Harder To Pull

Behind the scenes, the company leaned on its franchise model.

Royalty rates increased from 5% to around 7%, helping drive higher revenue per store. But that strategy may have limits. The TSOH note flags growing pressure on franchisees, suggesting the model needs to stay balanced to sustain growth.

At the same time, several tailwinds are fading:

  • Less room to raise prices
  • Rising competition in low-cost gyms
  • Slower growth versus earlier targets

Management had outlined mid-teens EBITDA growth, but recent guidance points closer to ~10%, signaling a step down.

From Easy Growth To Execution Story

Planet Fitness isn't losing relevance. It still dominates its niche.

But the shift is clear: the easy wins may be in the past.

What comes next will depend less on momentum—and more on execution.

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