TOP TIERMARKET NEWSWIRE
Movers explained · September 13, 2026

Why Is PLANET FITNESS INC A (PLNT) Stock Moving Today?

By the Top Tier Newswire AI Desk · August 25, 2026 at 11:34 AM ET · reviewed against 0 wire stories

PLANET FITNESS INC A (PLNT) is drawing unusual attention today.

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Why PLNT stock is down today

Planet Fitness Inc A (PLNT) fell 3.38% to $52.04 in morning trading on August 25, 2026, amid a wave of class action lawsuit alerts from multiple law firms. The stock opened at $53.77 and traded as high as $54.13 before declining to a session low of $52.03. The decline appears to be driven by investor concerns over recent legal developments and revised financial guidance.

What Happened

Multiple law firms have issued notices regarding securities class action lawsuits involving Planet Fitness. These include alerts from The Law Offices of Frank R. Cruz, SueWallSt, the Portnoy Law Firm, Block & Leviton LLP, Kaplan Fox Kilsheimer LLP, and the DJS Law Group. The lawsuits allege that PLNT investors suffered losses due to slower net member growth, reduced 2026 guidance, and the withdrawal of its three-year growth plan. The class action deadlines range from September 14, 2026, to other unspecified dates. These developments have heightened investor caution and contributed to the stock’s decline.

What The Data Shows

PLNT’s fundamentals remain mixed. The company reported Q2 adjusted earnings per share of $0.88, beating estimates, and raised its FY2026 adjusted EPS guidance to $3.25. However, it lowered its sales guidance to $1.417 billion. The stock has a market cap of $4.1 billion, a P/E ratio of 18.3, and a beta of 1.02. Intraday volume of 0.3 million shares is below the 3-month daily average. The 52-week range is $37.03 to $114.26, and the stock printed 25 fresh 52-week lows on August 25. Recent insider transactions show one buy of $493,000 in the last 90 days, with no sales reported.

What To Watch

Investors should monitor the class action deadlines and any updates on the company’s legal proceedings. Additionally, the stock’s performance may be influenced by future guidance or earnings reports.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.

PLNT by the numbers

Mkt cap: $4.1BP/E: 18.352w: $37.03 to $114.26
PLNT · Aug 25 session (5-min) · -2.45% vs prior close · updated 8:47 PM ET
$51.51$52.89$54.27prev close $53.86$52.549:00 AM11:30 AM2:00 PM4:30 PM7:00 PM9:00 AM · $53.779:30 AM · $53.439:35 AM · $54.039:40 AM · $54.029:45 AM · $54.129:50 AM · $53.209:55 AM · $52.9810:00 AM · $52.7710:05 AM · $52.6210:10 AM · $52.9410:15 AM · $53.0410:20 AM · $53.2810:25 AM · $53.2410:30 AM · $53.2410:35 AM · $53.1310:40 AM · $52.8810:45 AM · $52.7910:50 AM · $52.4910:55 AM · $52.4411:00 AM · $52.5811:05 AM · $52.4811:10 AM · $52.3211:15 AM · $52.2611:20 AM · $52.2811:25 AM · $52.2011:30 AM · $52.0411:35 AM · $52.0411:40 AM · $52.0511:45 AM · $51.9811:50 AM · $51.8411:55 AM · $51.8012:00 PM · $51.8412:05 PM · $51.8312:10 PM · $51.8212:15 PM · $51.7612:20 PM · $51.7612:25 PM · $51.9512:30 PM · $51.6612:35 PM · $51.7612:40 PM · $51.8512:45 PM · $52.0312:50 PM · $51.9812:55 PM · $51.911:00 PM · $51.771:05 PM · $51.761:10 PM · $51.721:15 PM · $51.691:20 PM · $51.701:25 PM · $51.721:30 PM · $51.781:35 PM · $51.841:40 PM · $51.811:45 PM · $51.841:50 PM · $51.871:55 PM · $51.892:00 PM · $52.012:05 PM · $52.082:10 PM · $52.132:15 PM · $52.142:20 PM · $52.232:25 PM · $52.152:30 PM · $52.152:35 PM · $52.122:40 PM · $52.132:45 PM · $52.052:50 PM · $51.972:55 PM · $51.993:00 PM · $52.113:05 PM · $52.063:10 PM · $52.103:15 PM · $52.083:20 PM · $52.133:25 PM · $52.153:30 PM · $52.193:35 PM · $52.273:40 PM · $52.293:45 PM · $52.363:50 PM · $52.373:55 PM · $52.534:00 PM · $52.544:10 PM · $52.544:40 PM · $52.544:50 PM · $53.006:30 PM · $52.547:00 PM · $52.54

The headlines behind the move

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Earlier PLNT move explainers: 2026-08-25 · 2026-08-19 · 2026-08-18