PLNT · Planet Fitness, Inc.

The thesis

Planet Fitness's shares have rallied hard from their September low, but the business still guides to about 1% same-club sales growth for 2026 and has not shown that member growth has restarted. The 5 November 2026 third-quarter report settles it. Until member additions turn, the case for the shares beating the S&P 500 over the next three months is weaker than even.

The damage started on 7 May 2026. That day the company cut its 2026 same-club sales outlook to about 1% from 4% to 5%, paused its planned Black Card price increase and withdrew its three-year targets. The shares fell about 31% that day, according to CNBC. The second-quarter report on 6 August 2026 beat estimates and kept the reduced outlook. Same-club sales rose only 1.7%, and all of that growth came from price rather than more members.

The shares then closed at $40.50 on 28 September 2026 and $52.63 on 28 October 2026, which leaves them 53.0% below the 52-week high of $111.97 in adjusted daily closes. The recovery narrative is maturing: the stock has moved sideways between $51.69 and $53.27 since 19 October 2026, and daily volume has fallen to 1.1–1.3 million shares from 2.2–3.1 million during the early-October advance.

Bullish and bearish views on Planet Fitness, Inc.

The bull case on Planet Fitness, Inc. (PLNT), in brief: Pricing power still shows up. The bear case: Member growth has stalled.

Bull case

• Pricing power still shows up. Black Card penetration, the share of members on the premium tier, reached 68% in the second quarter, up 210 basis points year on year, per the company's 6 August 2026 earnings call.
• Heavy buybacks shrink the share count. The company bought back $200 million of stock in the second quarter and $251.25 million year to date. It lifted its full-year adjusted EPS growth outlook to about 6% on that basis, per the 6 August 2026 report.
• Management ruled out negative comparable sales. On the 6 August 2026 call, management said it does not forecast negative same-club sales in the third or fourth quarter. It also said new ad creative would launch in the third quarter and a dynamic creative engine would roll out in September.
• Franchise system still ranks at the top. Planet Fitness kept the No. 1 fitness ranking and placed No. 22 overall on the 2026 Franchise Times Top 400, announced 19 October 2026.

Bear case

• Member growth has stalled. All of the 1.7% second-quarter same-club sales growth came from rate, according to the 6 August 2026 call. Management said sales growth would slow further through the second half.
• Margins are compressing. The adjusted EBITDA (earnings before interest, taxes, depreciation and amortization) margin narrowed to 41.8% in the second quarter from 43.3% a year earlier (Investing.com, 6 August 2026).
• Discount test signals pressure on price. The company is testing a national $10 Classic Card promotion against its $15 price point. Management calls it a limited-time test, per the 6 August 2026 call.
• Buybacks partly funded with debt. A $75 million variable funding note draw raised expected 2026 interest expense to about $115 million. That cut the adjusted net income outlook to a 3% decline from a 2% decline (6 August 2026 report).
• A new threat to "ghost" memberships. In late September, reports that AI assistants such as Meta's Muse could help consumers cancel memberships they pay for but do not use hit the shares. The stock fell from $47.05 on 21 September 2026 to $42.60 on 22 September 2026 on 7.35 million shares, the heaviest volume since mid-August.
• Shares sit close to analyst targets. Morgan Stanley rates the stock Equal-Weight with a $55 target, raised 27 October 2026. RBC Capital and Baird both cut their targets to $60 on 5 October 2026.

Price setup

The close of $52.63 on 28 October 2026 is $12.13 above the $40.50 low of 28 September 2026. The 14-day relative strength index (RSI) stands at 78.3, above the 70 line that usually marks an overbought stock. The shares are still down 5.9% over three months.

The October advance had two big days. The stock gained 8.97% to $47.98 on 9 October 2026 on 3.13 million shares. It then rose from $46.95 on 14 October 2026 to $52.89 on 19 October 2026. Since then, closes have stayed between $51.69 and $53.27.

Crowding is moderate. No share issuance has been reported, and the company has been buying back stock. Chief Operating Officer William Bode sold 7,000 shares at a weighted average of $51.22 on 14 September 2026, according to his SEC Form 4 filing as reported by The Motley Fool. The main crowding risk is timing: the shares reach the 5 November 2026 report overbought and within about $2.40 of Morgan Stanley's $55 target.

Catalysts, next 30 days

• 5 November 2026: third-quarter 2026 results (date set by the company on 22 October 2026). The report shows whether same-club sales held positive as management said in August, whether net member additions improved after the new ad creative, and whether the about-1% full-year sales outlook and the about-6% EBITDA growth outlook stand.

What would change the view

The bearish read breaks if the 5 November 2026 report shows net member growth turning positive. It also breaks if same-club sales come in above the second quarter's 1.7% with a rising share from volume rather than price, or if the full-year outlook is raised. Any of these would show that the marketing reset is working, and the case would move toward the shares beating the index.

The read gets worse if third-quarter same-club sales turn negative, which management said in August it did not expect. A cut to the 2026 outlook or a $10 Classic Card price made permanent would also confirm it. On price, a daily close below $46.90 would undo the second half of the October rebound, back under the 14 October 2026 close of $46.95.

What it trades with

Planet Fitness trades with the consumer-discretionary group (Hasbro, JAKKS Pacific, Kohl's, Bath & Body Works, Cracker Barrel, Sweetgreen). That group's momentum has been maturing in most weeks since 20 September 2026, with only a brief pickup in the week of 18 October 2026. A cooling group raises the bar for a single-name recovery. On 28 September 2026 the shares fell 5.6% in a broad leisure-sector selloff (AlphaStreet).

Interest rates matter twice over: they squeeze consumer spending, and they raise the cost of the company's floating-rate funding. Benzinga reported the 10-year Treasury yield near 5.1% on 16 October 2026, with Fed Chair Warsh declining to rule out an October rate hike after hot inflation data. Further rate pressure would weigh on both the group and the company's interest bill.