What if you'd held ATRC?
A $1,000 investment in AtriCure, Inc. (ATRC) at the month-end close of 2005-08 would be worth $3,788 at the close of 2026-09 — +278.8% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $9,430.
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 2005
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2005 | $1,000 | — |
| 2006 | $839 | -16.1% |
| 2007 | $1,231 | +46.6% |
| 2008 | $208 | -83.1% |
| 2009 | $567 | +172.1% |
| 2010 | $964 | +70.0% |
| 2011 | $1,042 | +8.1% |
| 2012 | $648 | -37.8% |
| 2013 | $1,754 | +170.7% |
| 2014 | $1,874 | +6.9% |
| 2015 | $2,107 | +12.4% |
| 2016 | $1,838 | -12.8% |
| 2017 | $1,713 | -6.8% |
| 2018 | $2,873 | +67.8% |
| 2019 | $3,053 | +6.2% |
| 2020 | $5,227 | +71.2% |
| 2021 | $6,529 | +24.9% |
| 2022 | $4,167 | -36.2% |
| 2023 | $3,351 | -19.6% |
| 2024 | $2,869 | -14.4% |
| 2025 | $3,715 | +29.5% |
| 2026 | $4,838 | +30.2% |
Best and worst month-end to buy
The best single month-end close to have bought ATRC was 2009-04 ($1.22): $1,000 then is $42,230 today. The worst was 2021-07 ($84.46): $1,000 then is $610.
FAQ
What would $1,000 in ATRC be worth today?
A $1,000 investment in AtriCure, Inc. (ATRC) at the start of 2005 would be worth about $3,788 today, a total return of +278.8%. Dividends are reinvested in these figures.
What were the best and worst years for ATRC?
AtriCure, Inc. (ATRC)'s strongest calendar year since 2005 was 2009, a +172.1% return — $1,000 held through that year became about $2,721 by year-end. Its weakest year was 2008, at -83.1%.
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 ATRC have grown?
Investing $100 at the end of every month since 2005-08 would have grown to about $108,698 on $25,400 invested.
Did ATRC 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 $9,430. ATRC trailed the S&P 500 by +59.8% 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
AtriCure, Inc. (ATRC) historical total-return data from 2005-08 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 2026-09-04. Not financial advice.