What if you'd held NPO?
A $1,000 investment in Enpro Inc. (NPO) at the month-end close of 2002-05 would be worth $59,625 at the close of 2026-08 — +5862.5% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $7,223.
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 2002
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2002 | $1,000 | — |
| 2003 | $3,491 | +249.1% |
| 2004 | $7,399 | +111.9% |
| 2005 | $6,744 | -8.9% |
| 2006 | $8,310 | +23.2% |
| 2007 | $7,670 | -7.7% |
| 2008 | $5,391 | -29.7% |
| 2009 | $6,609 | +22.6% |
| 2010 | $10,399 | +57.3% |
| 2011 | $8,253 | -20.6% |
| 2012 | $10,236 | +24.0% |
| 2013 | $14,428 | +41.0% |
| 2014 | $15,707 | +8.9% |
| 2015 | $11,132 | -29.1% |
| 2016 | $17,368 | +56.0% |
| 2017 | $24,408 | +40.5% |
| 2018 | $15,897 | -34.9% |
| 2019 | $17,971 | +13.1% |
| 2020 | $20,675 | +15.0% |
| 2021 | $30,491 | +47.5% |
| 2022 | $30,434 | -0.2% |
| 2023 | $44,322 | +45.6% |
| 2024 | $49,132 | +10.9% |
| 2025 | $61,394 | +25.0% |
| 2026 | $91,836 | +49.6% |
Best and worst month-end to buy
The best single month-end close to have bought NPO was 2002-10 ($2.52): $1,000 then is $126,821 today. The worst was 2026-06 ($377): $1,000 then is $848.
FAQ
What would $1,000 in NPO be worth today?
A $1,000 investment in Enpro Inc. (NPO) at the start of 2002 would be worth about $59,625 today, a total return of +5862.5%. Dividends are reinvested in these figures.
What were the best and worst years for NPO?
Enpro Inc. (NPO)'s strongest calendar year since 2002 was 2003, a +249.1% return — $1,000 held through that year became about $3,491 by year-end. Its weakest year was 2018, at -34.9%.
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 NPO have grown?
Investing $100 at the end of every month since 2002-05 would have grown to about $342,836 on $29,200 invested.
Did NPO beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $7,223. NPO beat the S&P 500 by +725.5% 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
Enpro Inc. (NPO) historical total-return data from 2002-05 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.