What if you'd held PLNT?
A $1,000 investment in Planet Fitness, Inc. (PLNT) at the month-end close of 2015-08 would be worth $2,618 at the close of 2026-09 — +161.8% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $4,720.
Your scenario
Result
If you'd bought $1,000 at the start of each year
Value of $1,000 invested on January 1 of each year, held to 2026-09, dividends included.
Every year, $1,000 from 2015
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2015 | $1,000 | — |
| 2016 | $1,463 | +46.3% |
| 2017 | $2,520 | +72.3% |
| 2018 | $3,902 | +54.8% |
| 2019 | $5,435 | +39.3% |
| 2020 | $5,650 | +4.0% |
| 2021 | $6,592 | +16.7% |
| 2022 | $5,735 | -13.0% |
| 2023 | $5,313 | -7.4% |
| 2024 | $7,196 | +35.4% |
| 2025 | $7,894 | +9.7% |
| 2026 | $2,984 | -62.2% |
Best and worst month-end to buy
The best single month-end close to have bought PLNT was 2016-01 ($12.56): $1,000 then is $3,264 today. The worst was 2025-11 ($112): $1,000 then is $366.
FAQ
What would $1,000 in PLNT be worth today?
A $1,000 investment in Planet Fitness, Inc. (PLNT) at the start of 2015 would be worth about $2,618 today, a total return of +161.8%. Dividends are reinvested in these figures.
What were the best and worst years for PLNT?
Planet Fitness, Inc. (PLNT)'s strongest calendar year since 2015 was 2017, a +72.3% return — $1,000 held through that year became about $1,723 by year-end. Its weakest year was 2026, at -62.2%.
Does the calculator include dividends and splits?
Yes where available. Prices are adjusted for both stock splits and reinvested dividends (total return), the same measure brokerages use.
How much would $100 per month in PLNT have grown?
Investing $100 at the end of every month since 2015-08 would have grown to about $12,920 on $13,400 invested.
Did PLNT beat the S&P 500?
Over the same period, $1,000 in the S&P 500 with dividends reinvested (the S&P 500 Total Return index) would be worth $4,720. PLNT trailed the S&P 500 by +44.5% in total return.
Is this investment advice?
No. Wall Street Regrets is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
Planet Fitness, Inc. (PLNT) historical total-return data from 2015-08 to 2026-09, reduced to month-end closes for the tables above.
Returns use adjusted close prices — adjusted for stock splits and reinvested dividends, the same convention used by major brokerages. End-of-day and live prices come from EODHD; parts of the deep historical series are carried over from Yahoo Finance data. A "year" scenario invests $1,000 at the prior December's month-end close and values it at the latest available month-end close. Non-USD amounts are converted at historical month-end exchange rates (EODHD): to USD on the buy date and back to your currency at the latest rate, so the return reflects the currency move as well as the asset.
Month-end resolution means intra-month extremes are not captured in tables; the calculator uses exact trading-day closes where daily data is available. Figures ignore taxes, fees, and the currency effects of non-USD listings. History is not a forecast. Wall Street Regrets is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via EODHD and Yahoo Finance. As of 2026-09-23. Not financial advice.