What if you'd held ENS?
A $1,000 investment in EnerSys (ENS) at the month-end close of 2004-08 would be worth $17,332 at the close of 2026-08 — +1633.2% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $6,980.
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 2026-08, dividends included.
Every year, $1,000 from 2004
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2004 | $1,000 | — |
| 2005 | $855 | -14.5% |
| 2006 | $1,049 | +22.7% |
| 2007 | $1,637 | +56.0% |
| 2008 | $722 | -55.9% |
| 2009 | $1,434 | +98.8% |
| 2010 | $2,106 | +46.9% |
| 2011 | $1,703 | -19.2% |
| 2012 | $2,468 | +44.9% |
| 2013 | $4,627 | +87.5% |
| 2014 | $4,115 | -11.1% |
| 2015 | $3,772 | -8.3% |
| 2016 | $5,323 | +41.1% |
| 2017 | $4,792 | -10.0% |
| 2018 | $5,389 | +12.5% |
| 2019 | $5,250 | -2.6% |
| 2020 | $5,891 | +12.2% |
| 2021 | $5,652 | -4.0% |
| 2022 | $5,334 | -5.6% |
| 2023 | $7,355 | +37.9% |
| 2024 | $6,798 | -7.6% |
| 2025 | $10,897 | +60.3% |
| 2026 | $14,442 | +32.5% |
Best and worst month-end to buy
The best single month-end close to have bought ENS was 2008-11 ($7.51): $1,000 then is $25,826 today. The worst was 2026-06 ($234): $1,000 then is $829.
FAQ
What would $1,000 in ENS be worth today?
A $1,000 investment in EnerSys (ENS) at the start of 2004 would be worth about $17,332 today, a total return of +1633.2%. Dividends are reinvested in these figures.
What were the best and worst years for ENS?
EnerSys (ENS)'s strongest calendar year since 2004 was 2009, a +98.8% return — $1,000 held through that year became about $1,988 by year-end. Its weakest year was 2008, at -55.9%.
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 ENS have grown?
Investing $100 at the end of every month since 2004-08 would have grown to about $163,491 on $26,500 invested.
Did ENS beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $6,980. ENS beat the S&P 500 by +148.3% 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
EnerSys (ENS) historical total-return data from 2004-08 to 2026-08, reduced to month-end closes for the tables above.
Returns use adjusted close prices from Yahoo Finance historical data — adjusted for stock splits and reinvested dividends — the same convention used by major brokerages. 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 (Yahoo Finance): 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 Yahoo Finance. As of 2026-08. Not financial advice.